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Oh, God!
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This, six foot below the surface of the earth,
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is the coolest place in the entire colony.
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And it draws down the hot, stale air from above...
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I'm being bitten!
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...draws it down from above,
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down these deep, long chimneys
which extend right up the side.
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(DIRECTOR) Sorry, David, cut! We'll have
to do it again, we couldn't see you.
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If you're making a series
of films about animal behaviour,
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seeing the narrator may or may not be useful.
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But you certainly need to see the animals.
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This is the tropical rainforest,
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famous for being the richest
proliferation of life on Earth,
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so where are the animals?
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You can walk for hours and not see any,
let alone get close enough to film them.
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But they're here all right.
You can hear them all around.
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(VARIOUS ANIMAL SOUNDS)
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At last, something.
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Only a fleeting glance,
and hardly the most appealing view.
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Chimpanzees. They're hunting colobus monkeys.
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But I only know that because I'm
with an expert: Christophe Boesch.
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Christophe is a Swiss zoologist who,
with his wife Hedwige,
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was the first to discover that chimpanzees
in these West African forests
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regularly catch monkeys.
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Each member of the hunting team has his
own particular job in setting up an ambush.
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To me, this seemed total confusion.
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And it was only Christophe's
explanations and predictions
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that enabled the cameraman
and me to follow the battle.
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When the hunt was over,
it was only because we were with him,
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wearing clothes similar to his,
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that they allowed us to get close
to them as they relaxed after the chase.
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How did get these animals so accustomed to you
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so we could stand as close to them as this?
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Just patience. It took us five years.
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Five years just following them,
being always very quiet, never aggressive,
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always the same colours, same clothing,
the same... patience, patience.
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- And how long every day?
- It's difficult to know.
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At the beginning, we are ten hours
in the forest and maybe see them two seconds.
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And it's just by accumulating the contacts
that, with time, the contacts get longer.
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And after some times... Now, you see,
we were able to follow them hours.
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But at the beginning,
it was absolutely impossible.
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It's difficult to imagine what it was
at the beginning, just bottoms running away.
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So after five years, you could get close to them,
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but then you now
know them individually, don't you?
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For sure, that's the main purpose
of this long-term study,
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to work on the individual level.
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How many are there in that group?
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- About 60.
- And you know all 60?
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All 60, yeah, but two very newborn babies
that are less than a month old.
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- How do you recognise them?
- A chimp's face is easy to recognise.
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How they look and the nose form and the ears.
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I say even I recognise better
chimpanzees than the human beings.
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Just the eyebrow and I know who it is.
A human is more difficult.
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What about their voices?
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The voices. I can recognise
each male individually by their voices.
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They are very clear and, I think,
all the females should be possible to recognise.
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The chimps recognise each other,
for sure, just by the voice.
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I can do it only with the males,
but it's still a great help.
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Following the hunt,
it's important to be with the hunters.
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If I know the voices I can say,
"OK, here's Brutus, let's go there",
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because I know he's the best hunter.
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Chasing bottoms and recognising eyebrows,
for Christophe, are means to an end:
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understanding the way chimpanzee society works.
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His research has shed
unexpected light on our own ancestry.
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It used to be thought that our primate
ancestors only developed tool using,
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cooperative hunting and food sharing,
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when they left the rainforest
and colonised the open savannahs.
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Christophe's findings, however, contradict that.
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When we compare chimpanzees,
we are surprised to see the opposite.
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It's the forest chimps who tend to hunt
more frequently, more sophisticatedly,
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cooperate much more, share more food,
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make more tools, use more tools.
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- It's rather a surprise.
- Very much so.
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Yeah.
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Does that mean they're going?
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No. They might be,
but if a group's resting like that,
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infants, there is always some fight, something.
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When we were talking earlier,
you inadvertently described yourself
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as a member of the chimp group.
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You said someone was coming to join "us",
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and actually you meant "the group of chimps".
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Yeah, I feel part of the group,
but I'm sure the chimps don't feel I am.
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So if I say "us", it's just my personal bias
because I have to behave like the chimps.
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Sometimes I even feel, the way they look at me,
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that I am making mistakes...
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What kind of mistakes?
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As I told you, it's when we are
going on patrol to the neighbour territory,
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so we tend to be very...
"We"! You see my mistake.
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They tend to be very silent, and they don't even...
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You've seen the way they walk.
They try not to make a single noise.
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I'm just a human and I make lots of noise,
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and they always look at me in a reproval way,
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as if I've made too much noise,
so I'm trying to be very...
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...trying to be part of the group.
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For hunting, it's the same.
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A group of hunters will arrive
under a group of colobus without being noticed.
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So I've trained myself alone
to walk under a group of colobus,
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so that I will not disturb
my chimpanzees before they hunt.
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It's only too easy to empathise with chimpanzees,
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but ants, surely, are totally inscrutable.
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How could you possibly develop
a fellow feeling for these?
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If anyone has done so, it must be Nigel Franks.
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He guided our filming of army ants in Panama,
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and I also tracked him down
to his laboratory in Bath University.
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He confessed that he really liked ants.
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It's a very strange thing.
I also admire them enormously.
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If we were to walk
onto Barra Colorado Island together
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and find some army ants at last,
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I can hardly believe what I'm seeing,
all the complexity and the organisation.
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My heart skips a beat, it's so exciting.
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You stand two inches from the edge of a trail,
and they don't even know you're there.
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That's the beauty of studying ants.
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Their world is so different, you can observe them
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like an Olympian god, without even interfering.
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These merciless hunters bring back
their booty to the bivouac,
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a million ants clinging together in a huge ball.
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Although this camp site is always shifting,
with Nigel's guidance we found it.
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But what goes on inside?
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The only way past these vicious guards
was with a long optical probe
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normally used by doctors
to look inside the human body.
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And the view it gave
thrilled Nigel as much as us.
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These army ants are devouring other ants,
and you've got all these voracious larvae.
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How do they control them?
All these hungry things live inside a wall of ants.
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How do they prevent them eating one another?
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Nobody, before that filming
expedition, had been able
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to look into a bivouac without disturbing it.
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To see how they were beautifully
holding on to each larva...
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There's a living colony creating a basketwork,
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and we hadn't been able
to look into it, so it was a revelation.
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Is this pure research,
just because you're interested in ants,
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or do they have a deeper significance?
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I see deep significance
in studying natural history,
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even in just knowing what's living
in this world that we're all living on.
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But, in addition, ants have some technologies
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that we're only just beginning to explore.
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For example,
there's no foreman, nobody's in charge,
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the queen's not giving out instructions.
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They all simply interact with one another
and react to one another's successes.
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So we can look at how
a lot of simple processing units,
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albeit ant workers, interact and communicate
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so you get the emergence
of complexity in structure.
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That can tell us about technologies
possibly involving teams of robots,
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or how to wire different computers together.
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After all, they're just simple processing units.
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We can really learn extremely deep
and important lessons from studying them,
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and yet you can go back to the natural
history and rejoice in simply looking at them.
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Elephants, of course,
are rather easier to spot than ants.
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But we hoped to film some
of the major events in an individual's life.
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To do that, you need to know exactly who is who.
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Cynthia Moss, in Kenya, has been
following one group of them for 25 years.
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I asked her how she'd started.
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The first thing we tried to do was to get
to know all the elephants individually.
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At that time, there were about
500-600 elephants in the population.
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That was a very nice number
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because we felt it was possible
to know each of those individuals.
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- How many hundred?
- Between 500-600.
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- How long did it take you to do that?
- Quite a long time. A couple of years.
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I think, in fact, it wasn't until 1978
that I knew every individual in the population.
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- How do you recognise them?
- By their ears, first of all.
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That's the main characteristic.
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Their ears are never
absolutely smooth along the edge.
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There's usually little nicks or holes or whatever.
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And also the vein pattern is very distinctive.
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But after a while, you get so used to them
and you recognise the whole elephant.
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And we can recognise them maybe
sometimes 100-200 metres away
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by just the body, the way it walks,
the way it holds its head.
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Just as if you were walking along
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and a friend of yours was walking away
from you across the street,
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you know that's Jack.
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And the same with elephants.
We recognise the whole animal now.
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- Do you give them names or numbers?
- Well, we give them names.
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We started out giving the males
numbers and the females names.
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And, of course, I've been accused
of being a female chauvinist for this.
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But it was hard enough thinking up
enough names for the females.
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That's one of the major trials,
trying to think up enough names.
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They each must have a unique first three letters.
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I've been through five
of those names for babies books.
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What's your research day like? How do you start?
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Well, it depends really
on what we're looking at at that time.
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We've done a number of studies.
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Now, for instance, I did a study
that was just on calf behaviour.
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So what I did was to choose 14 calves
and follow their lives for 18 months.
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Then my research day would consist
of trying to find one of those calves,
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and then stay with it and build up
a record of how that calf developed,
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when it started to feed, how much it suckled,
how close it stayed to its mother,
186
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when it was one month
and when it was nine months,
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just getting the developmental material.
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Filming the critical moments in the life
of a calf, its mother, auntie or grandmother,
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is only possible with such detailed knowledge.
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It must be very demanding.
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You must think, if only I could look
at something else other than this elephant.
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- Never, never.
- Really?
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It's one of the most amazing things,
that even I find surprising,
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that every time I go out to find elephants
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I'm looking forward to what I'm going to see.
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I know I'm going to see something
interesting and I've never been bored.
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- Do you have favourites?
- Yes, I'm embarrassed to say.
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- Why?
- I don't know.
199
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It's something about the way they interact,
maybe, with the rest of the family,
200
00:14:21,967 --> 00:14:29,566
certain personalities that we like,
and I have a new favourite whose name is Tulip.
201
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She's just a very sweet calf
and is full of fun, she does a lot of playing.
202
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She comes around the camp a lot,
that whole family is here, so I see them a lot.
203
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You do get very caught up in their lives,
what's going to happen to them,
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when is so-and-so
going to reach sexual maturity,
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will she have the calf, will it live,
who will she mate with?
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You do get caught up
in the whole history of the family.
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00:14:58,127 --> 00:15:02,047
There may be some austere
and puritanical scientist
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who'd say that if you call
an elephant, say, Elizabeth,
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you would be, almost inevitably,
conferring human characteristics on it.
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- Do you think that's a danger?
- Not any longer.
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It could be in the beginning of a study,
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but elephants are such overwhelming
creatures in their own lifestyle
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that you soon stop any ideas
that they might be human
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or might have human attributes.
215
00:15:30,967 --> 00:15:33,567
But we must share some characteristics.
216
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I mean characteristics like bad temper
or jealousy or sexiness or something.
217
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I think there are some that you could
use English words to describe,
218
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such as... I've always said elephants
can experience something similar to joy.
219
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Just being with them a short while
220
00:15:58,207 --> 00:16:01,247
you realise they're certainly
experiencing some kind of emotion.
221
00:16:01,247 --> 00:16:05,647
If you use the word joy,
you're accused of being anthropomorphic,
222
00:16:05,647 --> 00:16:08,047
but there is some sort of elephantine joy,
223
00:16:08,047 --> 00:16:11,527
we just don't have the vocabulary
to create a new word.
224
00:16:11,527 --> 00:16:17,647
But it's certainly there and it's similar
to human excitement and happiness.
225
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But I don't know what you could
call it that would satisfy the purists.
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00:16:22,607 --> 00:16:25,047
Cynthia's elephants were very cooperative.
227
00:16:25,047 --> 00:16:28,727
But these waders in Norfolk
are always extremely nervous.
228
00:16:28,727 --> 00:16:33,207
To film them effectively you need more
than just powerful lenses and hides.
229
00:16:33,207 --> 00:16:35,527
You also need some inside knowledge,
230
00:16:35,527 --> 00:16:39,727
and RSPB warden Paul Fisher certainly has that.
231
00:16:39,727 --> 00:16:41,807
When the tide begins coming in,
232
00:16:41,807 --> 00:16:45,727
it covers over the feeding grounds,
the mud-flats out there,
233
00:16:45,727 --> 00:16:51,247
and the birds are forced more
and more to come in towards the shore
234
00:16:51,247 --> 00:16:56,607
onto smaller areas of mud,
gathering together in larger and larger numbers.
235
00:16:56,607 --> 00:17:00,087
He knows that the biggest tides
drive the birds off the estuary,
236
00:17:00,087 --> 00:17:03,840
forcing them to roost in a nearby gravel pit.
237
00:17:03,927 --> 00:17:07,807
I think we can look forward
to the next couple of days,
238
00:17:07,807 --> 00:17:10,207
when there'll be particularly high tides,
239
00:17:10,207 --> 00:17:13,327
amongst the highest
we can expect in the year,
240
00:17:13,327 --> 00:17:16,207
and at that time,
although it doesn't look much now,
241
00:17:16,207 --> 00:17:18,567
looking out over these shingle sites,
242
00:17:18,567 --> 00:17:24,482
we can expect to see
40-, 50-, 60,000 birds roosting here.
243
00:17:24,687 --> 00:17:31,045
One shot we particularly wanted was
of a huge flock wheeling above my head.
244
00:17:34,447 --> 00:17:36,927
With the birds all crowded together as predicted,
245
00:17:36,927 --> 00:17:40,887
Paul knew exactly the right tactics to get it.
246
00:17:40,887 --> 00:17:44,367
Yes, somewhere around here
for the exact flightline.
247
00:17:44,367 --> 00:17:47,567
Now then, yes, I think probably about here,
248
00:17:47,567 --> 00:17:51,927
because the birds will fly in
from that direction there, over the wall,
249
00:17:51,927 --> 00:17:57,087
and make a beeline for this part
of the marsh over there.
250
00:17:57,087 --> 00:18:00,607
So I think if we had the camera crew here,
251
00:18:00,607 --> 00:18:03,087
I think they'll fly practically over his head.
252
00:18:03,087 --> 00:18:07,567
Now, as so often,
it's just a case of patient waiting.
253
00:18:07,567 --> 00:18:13,561
There are warmer places to do that
than the Norfolk coast at dawn in November.
254
00:18:18,407 --> 00:18:22,327
They'll only make the flight
from gravel pit to mud-flat once.
255
00:18:22,327 --> 00:18:26,603
If we miss it, we may not get another chance.
256
00:18:31,287 --> 00:18:33,766
They're on the road.
257
00:19:03,167 --> 00:19:06,556
Just what we wanted.
258
00:19:06,887 --> 00:19:10,567
(HELICOPTER BLADES WHIRR)
259
00:19:10,567 --> 00:19:13,287
But birds can be very obliging.
260
00:19:13,287 --> 00:19:17,647
We never had a more cooperative subject
during the three years of filming
261
00:19:17,647 --> 00:19:22,567
than the one I met here among the stunted
palm scrub of southern Florida.
262
00:19:22,567 --> 00:19:25,047
It's a harsh territory for birds.
263
00:19:25,047 --> 00:19:28,927
Food is hard to find and there
aren't many places to build a nest,
264
00:19:28,927 --> 00:19:31,567
but it's the home of an interesting bird
265
00:19:31,567 --> 00:19:36,327
that has been studied almost
as intensively as any bird in the world.
266
00:19:36,327 --> 00:19:38,727
And this is it!
267
00:19:38,727 --> 00:19:40,887
The Florida scrub jay.
268
00:19:40,887 --> 00:19:44,487
Because every jay in this
part of the world has been banded
269
00:19:44,487 --> 00:19:46,447
for the past almost 20 years,
270
00:19:46,447 --> 00:19:49,887
we know who each is
and what part they play in the community.
271
00:19:49,887 --> 00:19:52,607
(HE CALLS TO THE BIRDS)
272
00:19:52,607 --> 00:19:55,607
And that's all thanks to Glen Woolfenden.
273
00:19:55,607 --> 00:19:58,647
Is that noise your invention or one of their calls?
274
00:19:58,647 --> 00:20:00,767
I think it's a bird invention.
275
00:20:00,767 --> 00:20:05,327
It's a rough imitation of the call they make
276
00:20:05,327 --> 00:20:08,087
when they want to chase
somebody from their territory.
277
00:20:08,087 --> 00:20:11,887
So why do they come to you
if you're making that call?
278
00:20:11,887 --> 00:20:15,207
They've also learned that when we do it -
279
00:20:15,207 --> 00:20:18,367
and I'm sure they can tell us from other birds -
280
00:20:18,367 --> 00:20:21,367
it means food, like the peanuts in my hand.
281
00:20:21,367 --> 00:20:24,327
- Do you deliberately tame them?
- Absolutely.
282
00:20:24,327 --> 00:20:31,167
Because our objective is to have
the birds so tame that they tend to ignore us,
283
00:20:31,167 --> 00:20:36,807
so when we go to follow their behaviour
we can watch a bird behaving normally.
284
00:20:36,807 --> 00:20:42,687
As soon as we want to watch them
behaving normally, I take the food away,
285
00:20:42,687 --> 00:20:47,287
then they begin foraging on their own
or other normal activities.
286
00:20:47,287 --> 00:20:50,567
So what do they think you are?
287
00:20:50,567 --> 00:20:53,167
That's complicated
and varies with the individuals.
288
00:20:53,167 --> 00:20:55,567
We're here with the tamest individuals.
289
00:20:55,567 --> 00:20:57,607
Obviously, we're a food supply.
290
00:20:57,607 --> 00:21:00,647
When we visit their nest, they're a little uneasy.
291
00:21:00,647 --> 00:21:04,167
I don't think the tamest ones
consider us predators,
292
00:21:04,167 --> 00:21:08,207
perhaps more comparable to a deer
browsing through the habitat
293
00:21:08,207 --> 00:21:12,007
that might bump into the nest,
so they try and scold us
294
00:21:12,007 --> 00:21:15,447
as they would a deer
to move us away from the nest.
295
00:21:15,447 --> 00:21:19,967
So you can know every one
of these birds as an individual, right?
296
00:21:19,967 --> 00:21:24,847
Absolutely, but we can't tell
individuals apart by their appearance,
297
00:21:24,847 --> 00:21:28,847
but by the colour rings they have on their legs.
298
00:21:28,847 --> 00:21:33,927
We have ten colours, a silver band,
and when you put them together,
299
00:21:33,927 --> 00:21:38,887
you could have 1,200 unique combinations
before you had to duplicate any names.
300
00:21:38,887 --> 00:21:40,487
Who is this?
301
00:21:40,487 --> 00:21:45,287
This is a one-year-old female
called Silver Azure Green Dash.
302
00:21:45,287 --> 00:21:50,087
The silver is the metal band, and the dash
tells you which leg the bands are on.
303
00:21:50,087 --> 00:21:53,007
When was she hatched? What's her history?
304
00:21:53,007 --> 00:21:59,007
She's just under a year old.
She was hatched in a nest relatively nearby.
305
00:21:59,007 --> 00:22:03,447
There's somebody back,
a different one, this is its sister.
306
00:22:03,447 --> 00:22:08,407
She was hatched in a nest
within 100 feet of here about a year ago.
307
00:22:08,407 --> 00:22:13,247
What's the advantage
of this detailed study of every single bird?
308
00:22:13,247 --> 00:22:18,367
Our objective is to really know
the sociology of a wild animal,
309
00:22:18,367 --> 00:22:22,087
the demography, the behaviour of the animal.
310
00:22:22,087 --> 00:22:27,567
If they're tame like this,
we can follow virtually their every move
311
00:22:27,567 --> 00:22:30,717
with their paying very little attention.
312
00:22:33,127 --> 00:22:36,887
The Florida scrub jay
has a social system known as
313
00:22:36,887 --> 00:22:39,887
"cooperative breeding" or "helpers at the nest".
314
00:22:39,887 --> 00:22:47,487
These birds, right now, are helping
at a nest of their mother and stepfather.
315
00:22:47,487 --> 00:22:52,487
Last year, other birds, like the one
on your head, helped raise these.
316
00:22:52,487 --> 00:22:56,287
So there's a cooperation
within these families or clans
317
00:22:56,287 --> 00:22:58,607
that we're interested in studying.
318
00:22:58,607 --> 00:23:01,407
That was why we wanted to film them.
319
00:23:01,407 --> 00:23:04,007
The helpers didn't see us as a threat,
320
00:23:04,007 --> 00:23:09,842
but they gave us a perfect demonstration
of how to see off real intruders.
321
00:23:10,047 --> 00:23:13,481
(SCREECHING)
322
00:23:24,167 --> 00:23:28,687
Do you manage to retain
a scientific, dispassionate view
323
00:23:28,687 --> 00:23:31,567
or do you develop favourites among them?
324
00:23:31,567 --> 00:23:35,167
I have to remain objective
in order to study science,
325
00:23:35,167 --> 00:23:39,327
so when we see a bird about to be
depredated or that seems hungry,
326
00:23:39,327 --> 00:23:44,887
we don't change its natural behaviour,
because we want to study nature.
327
00:23:44,887 --> 00:23:49,367
Secretly, perhaps, there are birds
that one of us likes a little more,
328
00:23:49,367 --> 00:23:51,607
but we can't help him.
329
00:23:51,607 --> 00:23:56,407
This relationship between man and bird
has been going on not just for 20 years,
330
00:23:56,407 --> 00:23:59,007
but for at least 20,000.
331
00:23:59,007 --> 00:24:04,687
The honeyguide will lead you to a nest
of wild bees, if you understand its signals.
332
00:24:04,687 --> 00:24:09,167
This has been studied by Hussein Isack
from the National Museum in Nairobi.
333
00:24:09,167 --> 00:24:14,127
Where I come from in northern Kenya,
we use the bird to find honey.
334
00:24:14,127 --> 00:24:16,047
It's very important to us.
335
00:24:16,047 --> 00:24:20,567
So I've always been very interested
to find how this behaviour works,
336
00:24:20,567 --> 00:24:23,927
what the benefits are for the bird and for people.
337
00:24:23,927 --> 00:24:27,207
So you've known honeyguides
since you were small?
338
00:24:27,207 --> 00:24:33,207
Yes. I followed it as a young boy,
but I never looked at it as a scientist.
339
00:24:33,207 --> 00:24:36,047
What have you discovered through this work?
340
00:24:36,047 --> 00:24:42,327
First, honeyguides know the locations
of all bee colonies in an area.
341
00:24:42,327 --> 00:24:49,407
So when they find a person, they take him
straight to the nearest bee colony.
342
00:24:49,407 --> 00:24:53,607
Previously, it was thought that when
the bird finds a person they get excited,
343
00:24:53,607 --> 00:24:57,967
then fly in front of you,
looking for bee colonies at the same time.
344
00:24:57,967 --> 00:24:59,487
This isn't true.
345
00:24:59,487 --> 00:25:04,047
They already know where the bees are,
and they lead him to this fairly straight.
346
00:25:04,047 --> 00:25:10,127
That means that the honeyguide has
a map in its mind of a very big territory.
347
00:25:10,127 --> 00:25:13,567
Yes. If the colony's far, say, two kilometres,
348
00:25:13,567 --> 00:25:18,087
the bird will fly straight and then come
back after 2-3 minutes,
349
00:25:18,087 --> 00:25:21,647
so it's as if it has to go
and establish the direction,
350
00:25:21,647 --> 00:25:26,647
which is difficult because
the whole forest looks the same.
351
00:25:26,647 --> 00:25:32,527
That means, too, that the birds explore
their area and find all the bees' nests.
352
00:25:32,527 --> 00:25:34,447
Yes.
353
00:25:34,447 --> 00:25:39,207
If you sit near a bee colony
in a hide and don't make any noise,
354
00:25:39,207 --> 00:25:43,367
you will find, in the morning,
several birds come to check and fly away.
355
00:25:43,367 --> 00:25:47,287
So they seem to check whether
a honey badger or a person
356
00:25:47,287 --> 00:25:51,207
has attacked the bees in their absence...
357
00:25:51,207 --> 00:25:56,967
- So they even update their knowledge.
- Yes, they do.
358
00:25:56,967 --> 00:26:00,207
When the bird arrives at the bee colony,
359
00:26:00,207 --> 00:26:04,807
the guiding call changes,
so you know, or the honey hunters know,
360
00:26:04,807 --> 00:26:08,167
before they reach the colony,
that the bird has arrived.
361
00:26:08,167 --> 00:26:11,367
This is important because
some people may give up.
362
00:26:11,367 --> 00:26:16,727
Following the bird in the bush is so difficult,
with acacia thorns, people do give up.
363
00:26:16,727 --> 00:26:21,087
So the bird has evolved a way
of telling the person, "We have arrived,
364
00:26:21,087 --> 00:26:24,476
"now look for the colony".
365
00:26:43,047 --> 00:26:45,560
Thank you.
366
00:26:48,487 --> 00:26:51,159
Mmm!
367
00:26:51,167 --> 00:26:55,447
The bird has not only led us to honey,
it has posed for us to film it,
368
00:26:55,447 --> 00:26:59,564
and that certainly deserves a reward.
369
00:27:04,527 --> 00:27:08,127
But how could this relationship have started?
370
00:27:08,127 --> 00:27:15,447
It is thought that guiding behaviour
may have started with the honey badger.
371
00:27:15,447 --> 00:27:17,047
The honey badger?
372
00:27:17,047 --> 00:27:21,527
Because honey badgers dig up bees' nests,
373
00:27:21,527 --> 00:27:26,087
if the bees' nests are underground
where they're accessible to the badger.
374
00:27:26,087 --> 00:27:29,487
It is thought maybe
this behaviour started with the badger,
375
00:27:29,487 --> 00:27:32,767
so I want to see if this actually happens.
376
00:27:32,767 --> 00:27:35,287
How are you going to find that out?
377
00:27:35,287 --> 00:27:38,487
I've got a model car
378
00:27:38,487 --> 00:27:43,607
which I operate remote with this thing,
379
00:27:43,607 --> 00:27:47,407
and I have a badger on it.
380
00:27:47,407 --> 00:27:54,447
And if the bird does indeed
guide a badger, it should respond.
381
00:27:54,447 --> 00:27:57,047
Obviously, I've got to operate it from a height.
382
00:27:57,047 --> 00:27:59,527
- Have you tried it yet?
- I'm trying.
383
00:27:59,527 --> 00:28:02,567
The problem is the terrain, it's quite rough,
384
00:28:02,567 --> 00:28:05,287
and this little car gets stuck a lot,
385
00:28:05,287 --> 00:28:09,207
so I have to help it and the bird sees me.
386
00:28:09,207 --> 00:28:12,247
But I have started and I think they'll respond,
387
00:28:12,247 --> 00:28:16,876
if they do guide the real badger.
388
00:28:23,207 --> 00:28:27,847
In the Serengeti, another scientist
uses electronic gadgetry
389
00:28:27,847 --> 00:28:30,367
to investigate his subjects.
390
00:28:30,367 --> 00:28:35,280
Craig Packer and his team work with lions.
391
00:28:45,167 --> 00:28:47,847
A powerful loudspeaker
392
00:28:47,847 --> 00:28:51,600
and a very long lead...
393
00:28:52,807 --> 00:28:57,846
...the truck driven away to a safe distance...
394
00:28:58,287 --> 00:29:04,042
...and a recording of the roar
of a particularly powerful stranger.
395
00:29:05,567 --> 00:29:09,035
(ROAR FROM LOUDSPEAKER)
396
00:29:11,887 --> 00:29:16,084
(LOUDER ROAR FROM LOUDSPEAKER)
397
00:29:16,167 --> 00:29:20,607
The advantage of the playback
experiment is that we can intervene,
398
00:29:20,607 --> 00:29:24,207
we can create a situation to elicit the behaviour,
399
00:29:24,207 --> 00:29:30,884
so that we can actually watch
in detail in a controlled situation.
400
00:29:32,167 --> 00:29:36,527
It seems much of the roaring
has to do with their territorial behaviour.
401
00:29:36,527 --> 00:29:39,487
If they've just chased away a stranger
402
00:29:39,487 --> 00:29:44,407
then they'll roar as a parting shot
to the retreating opponents.
403
00:29:44,407 --> 00:29:49,327
But often it seems they're roaring more
to stay in contact with their pride mates.
404
00:29:49,327 --> 00:29:53,207
The pride is often split up
and spread over a wide area,
405
00:29:53,207 --> 00:29:59,447
and they might be roaring to find out
where their companions are at any time.
406
00:29:59,447 --> 00:30:04,047
And they show a really interesting
variety of cooperative behaviours.
407
00:30:04,047 --> 00:30:06,607
They hunt together, rear their cubs together,
408
00:30:06,607 --> 00:30:09,327
and they defend these group territories.
409
00:30:09,327 --> 00:30:13,607
We filmed Craig's lions
tackling buffalo in the only way they can -
410
00:30:13,607 --> 00:30:15,327
as a team.
411
00:30:15,327 --> 00:30:17,367
Lions are such familiar animals
412
00:30:17,367 --> 00:30:21,567
you might think we know
all about their behaviour, but not so.
413
00:30:21,567 --> 00:30:25,327
They generally seem
to surprise us with what they're up to.
414
00:30:25,327 --> 00:30:29,207
How do they know if they live in a pride of ten
415
00:30:29,207 --> 00:30:31,887
they'd do better than a pride of 11?
416
00:30:31,887 --> 00:30:35,367
Then we say, "They can't do that.
They can't count to ten".
417
00:30:35,367 --> 00:30:39,727
Then we look at our data and find
they mostly live in prides of ten or less.
418
00:30:39,727 --> 00:30:42,967
It's as if they do make some of these decisions,
419
00:30:42,967 --> 00:30:45,527
and we've no idea how they do it.
420
00:30:45,527 --> 00:30:48,567
We assume they use certain rules of thumb.
421
00:30:48,567 --> 00:30:54,127
In a certain situation, I'm a bit hungrier
than I would be if I did something else.
422
00:30:54,127 --> 00:30:56,487
It's not that they're counting to ten,
423
00:30:56,487 --> 00:30:59,967
but maybe something happens
between ten and 11that we can't see,
424
00:30:59,967 --> 00:31:03,007
and they see something that correlates with that.
425
00:31:03,007 --> 00:31:06,447
After 25 years of study,
426
00:31:06,447 --> 00:31:11,687
do you think now you can
empathise into the mind of a lion,
427
00:31:11,687 --> 00:31:15,407
that you can really know what it's feeling?
428
00:31:15,407 --> 00:31:19,767
Not really. A few things seem straightforward.
429
00:31:19,767 --> 00:31:25,087
If they're to kill or a male is guarding
a female, they seem very possessive.
430
00:31:25,087 --> 00:31:27,167
It's obvious when they're hungry.
431
00:31:27,167 --> 00:31:33,607
But for the rest of the time, it's difficult
to try to understand what's going on in there.
432
00:31:33,607 --> 00:31:38,847
If you look into the eyes of a baboon,
you get the sense of wheels turning,
433
00:31:38,847 --> 00:31:45,487
and a sense of what this animal might
be thinking about for its next move.
434
00:31:45,487 --> 00:31:50,247
But when you look into
the eyes of a lion, it's like cold fish.
435
00:31:50,247 --> 00:31:57,197
It's just nothing. You cannot really
read into it in the same way.
436
00:31:59,327 --> 00:32:03,767
The Sahara has one advantage
for anyone studying animals.
437
00:32:03,767 --> 00:32:06,767
It's such a simple environment,
it should be easy to sort out
438
00:32:06,767 --> 00:32:09,047
what's affecting an animal's behaviour.
439
00:32:09,047 --> 00:32:12,567
There aren't, of course,
many animals, but there is one:
440
00:32:12,567 --> 00:32:16,400
an amazingly accomplished ant.
441
00:32:20,767 --> 00:32:24,567
Cataglyphis comes out at midday,
when the sand is hottest,
442
00:32:24,567 --> 00:32:27,207
to collect insects killed by heatstroke.
443
00:32:27,207 --> 00:32:31,047
And after wandering about
in all directions over the featureless sand,
444
00:32:31,047 --> 00:32:33,927
it can still run straight back to its nest.
445
00:32:33,927 --> 00:32:37,487
How does it know which way to go?
446
00:32:39,967 --> 00:32:44,167
The man who discovered the answer,
making cataglyphis famous amongst ants,
447
00:32:44,167 --> 00:32:48,647
Rudiger Wehner,
was still busy with his apparatus.
448
00:32:48,647 --> 00:32:51,967
What exactly is this extraordinary device?
449
00:32:51,967 --> 00:32:54,687
This trolley is an almost perfect
tracking device
450
00:32:54,687 --> 00:32:57,407
for following accurately
the coordinates of an ant.
451
00:32:57,407 --> 00:33:03,967
There is an ant walking in the centre,
and we now follow its every movement.
452
00:33:03,967 --> 00:33:08,367
This ant has left its underground
burrow to search for prey,
453
00:33:08,367 --> 00:33:14,807
and it has found a piece of food
which it now carries straight back to its home.
454
00:33:14,807 --> 00:33:19,287
So you can see exactly
which direction it's going in and plot its course.
455
00:33:19,287 --> 00:33:23,847
Yes. To find its way, the ant
would use the position of the sun
456
00:33:23,847 --> 00:33:25,847
and other sources of light information.
457
00:33:25,847 --> 00:33:29,127
What about these extra bits on your device?
458
00:33:29,127 --> 00:33:33,287
By these devices, I can show
that the ants use the sun as a compass.
459
00:33:33,287 --> 00:33:38,127
I now block off the direct light from the sun,
460
00:33:38,127 --> 00:33:43,207
and turn this mirror and reflect
the light from the sun onto the ant.
461
00:33:43,207 --> 00:33:48,287
So, for the ant, the position of the sun
has shifted by 180 degrees.
462
00:33:48,287 --> 00:33:54,441
And, actually, the ant turns around
and now walks away from home.
463
00:33:54,527 --> 00:33:58,807
Well, it proves it. It's very unkind.
464
00:33:58,807 --> 00:34:03,767
You see it? It's still walking
away from home, not knowing what it's doing.
465
00:34:03,767 --> 00:34:07,367
Is it only the sun?
If the sun goes in, does it get lost?
466
00:34:07,367 --> 00:34:10,807
No, it would also use
the pattern of polarised light in the sky,
467
00:34:10,807 --> 00:34:16,287
but this is now blocked off by this
orange filter in the centre of the trolley.
468
00:34:16,287 --> 00:34:19,767
Polarised light? We can't see polarised light?
469
00:34:19,767 --> 00:34:23,527
Polarised light is invisible
to humans, but insects can see it
470
00:34:23,527 --> 00:34:28,327
because they have built into their
compound eyes tiny polarisers,
471
00:34:28,327 --> 00:34:30,687
by which they use polarised light as a compass.
472
00:34:30,687 --> 00:34:34,087
So there's a pattern in the sky
that we can't see...?
473
00:34:34,087 --> 00:34:35,767
Exactly, a complicated pattern.
474
00:34:35,767 --> 00:34:40,407
The polarisers in the ant's eye
are a mirror image of this pattern.
475
00:34:40,407 --> 00:34:43,807
The ant scans the sky to get the best fit
476
00:34:43,807 --> 00:34:47,407
of its own analyser pattern
and the outside polariser pattern.
477
00:34:47,407 --> 00:34:49,287
Astounding!
478
00:34:49,287 --> 00:34:53,327
So Rudiger Wehner has shown
that a tiny creature like an ant
479
00:34:53,327 --> 00:34:57,287
has an astonishingly advanced
computing capacity.
480
00:34:57,287 --> 00:35:03,167
But one answer just prompts
more questions, and he's still working away.
481
00:35:03,167 --> 00:35:06,207
His subjects do at least come out into the open.
482
00:35:06,207 --> 00:35:11,967
Other insects with equally astonishing talents
live almost entirely below ground.
483
00:35:11,967 --> 00:35:13,967
Termites.
484
00:35:13,967 --> 00:35:16,807
Several million live in a single community,
485
00:35:16,807 --> 00:35:21,447
largely ruled by a huge,
bloated egg factory, the queen.
486
00:35:21,447 --> 00:35:25,527
They build some of the biggest
constructions made by any animals.
487
00:35:25,527 --> 00:35:29,007
To see inside, a delicate approach is no good.
488
00:35:29,007 --> 00:35:33,567
You need a pick, a shovel
and a big hole. Mark Collins showed us.
489
00:35:33,567 --> 00:35:39,004
Here's one I prepared earlier.
Let's go in and have a look.
490
00:35:41,007 --> 00:35:45,327
Here we are in the cellar,
directly beneath the termites' main nest.
491
00:35:45,327 --> 00:35:49,407
Above us, unknown to science
until a few years ago,
492
00:35:49,407 --> 00:35:55,767
these clay veins, spiral veins, going round
and round under this huge clay plate,
493
00:35:55,767 --> 00:35:58,207
which cools the colony.
494
00:35:58,207 --> 00:36:01,607
It's absolutely spectacularly beautiful,
I must say.
495
00:36:01,607 --> 00:36:06,127
But haven't we killed this colony now,
by digging this hole in it?
496
00:36:06,127 --> 00:36:08,687
By our actions, I think not,
497
00:36:08,687 --> 00:36:12,767
because the termites, unbelievably,
can move 1 cwt of soil overnight,
498
00:36:12,767 --> 00:36:15,327
and they can soon seal this hole.
499
00:36:15,327 --> 00:36:18,047
But, unfortunately, we're on the edge of a farm,
500
00:36:18,047 --> 00:36:23,287
and it's the farmers that kill off
these nests by ploughing the soil.
501
00:36:23,287 --> 00:36:28,200
They destroy the termites' galleries
and they can't survive that.
502
00:36:28,687 --> 00:36:34,487
In these soils, the termite population
can reach 4-5,000 per square metre of soil.
503
00:36:34,487 --> 00:36:37,367
Once the bush is clear,
504
00:36:37,367 --> 00:36:42,007
termites start to feed on the crops
the farmers are trying to grow.
505
00:36:42,007 --> 00:36:45,767
In some cases, like the nest
we've seen, those species die out,
506
00:36:45,767 --> 00:36:47,527
but others become pests.
507
00:36:47,527 --> 00:36:50,767
You've spent a lot of years studying termites.
508
00:36:50,767 --> 00:36:53,727
Would you be sorry if they were exterminated?
509
00:36:53,727 --> 00:36:55,567
Very sorry indeed.
510
00:36:55,567 --> 00:37:01,047
They're crucial to the recyling of materials
and nutrients through the ecosystem.
511
00:37:01,047 --> 00:37:04,847
They're the engine of the ecosystem,
turning over the dead plant litter,
512
00:37:04,847 --> 00:37:07,007
bringing it back into the soil.
513
00:37:07,007 --> 00:37:10,287
Many predators depend upon them
for their everyday sustenance.
514
00:37:10,287 --> 00:37:16,207
Not only that, when you look
at the way they run their societies,
515
00:37:16,207 --> 00:37:19,887
they're so efficient
that one can only admire them.
516
00:37:19,887 --> 00:37:22,127
There's so little waste, almost none.
517
00:37:22,127 --> 00:37:27,287
On these fungus gardens, they recycle
everything, so unlike ourselves, in fact.
518
00:37:27,287 --> 00:37:33,122
We can learn things from them.
The world would be a worse place without them.
519
00:37:33,847 --> 00:37:36,327
Even with the best advice, of course,
520
00:37:36,327 --> 00:37:40,567
filming doesn't necessarily
go smoothly and without interruption.
521
00:37:40,567 --> 00:37:44,647
They move around in a flock,
scratching around for what they can get...
522
00:37:44,647 --> 00:37:47,956
(COW MOOS)
Cut!
523
00:37:49,367 --> 00:37:51,607
Cut!
524
00:37:51,607 --> 00:37:54,359
I've got sweat in my eyes.
525
00:37:55,327 --> 00:37:58,204
I burnt my thumb!
526
00:37:59,687 --> 00:38:02,527
They are remarkably sweet and delicious...
527
00:38:02,527 --> 00:38:05,757
And also gritty! (SPITS)
528
00:38:07,007 --> 00:38:10,327
But you wouldn't want anything
to go wrong here.
529
00:38:10,327 --> 00:38:14,847
We'd read detailed scientific accounts
of how these killer whales, orca,
530
00:38:14,847 --> 00:38:18,447
plunder the colony of sea lions
on this beach in Patagonia.
531
00:38:18,447 --> 00:38:21,647
Although scientists can tell you
what is happening,
532
00:38:21,647 --> 00:38:24,367
it's the cameraman who has to get the shots.
533
00:38:24,367 --> 00:38:27,167
And Paul Atkins took on the job.
534
00:38:27,167 --> 00:38:30,727
How practical did you think it was going to be?
535
00:38:30,727 --> 00:38:35,647
We thought it was going to be very practical
to get good shots from the beach
536
00:38:35,647 --> 00:38:38,647
of whales attacking sea lions because,
537
00:38:38,647 --> 00:38:42,607
according to scientist Juan Carlos Lopez,
it happened fairly predictably,
538
00:38:42,607 --> 00:38:46,887
at predictable places on the beach,
so we knew we could get something.
539
00:38:46,887 --> 00:38:51,407
The very first day, Juan Carlos
took us to a hotspot on the beach.
540
00:38:51,407 --> 00:38:54,687
He said, "Sit here a minute". The tide was right.
541
00:38:54,687 --> 00:38:58,007
And a whale charged out of the water
and grabbed a sea lion.
542
00:38:58,007 --> 00:39:03,647
Juan Carlos was so pleased
it had happened like he said it would.
543
00:39:03,647 --> 00:39:08,727
But after watching that for two weeks,
and watching them take the pups out,
544
00:39:08,727 --> 00:39:14,407
toss them around like a volleyball game,
it was quite horrifying to watch,
545
00:39:14,407 --> 00:39:18,047
we concluded it would be suicide
to get in the water.
546
00:39:18,047 --> 00:39:20,007
We checked with Argentinian divers
547
00:39:20,007 --> 00:39:23,287
and they all said don't
ever get in the water with orca.
548
00:39:23,287 --> 00:39:25,047
And Juan Carlos,
549
00:39:25,047 --> 00:39:30,757
who'd studied these whales for 17 years,
had never been in the water with them.
550
00:39:33,727 --> 00:39:39,323
There was no problem getting shots
from the safety of the beach.
551
00:39:40,767 --> 00:39:46,367
The spot where we got most of the shots
of the whales grabbing sea lions
552
00:39:46,367 --> 00:39:50,807
we called "the dead zone",
and it was an attack channel.
553
00:39:50,807 --> 00:39:55,207
Killer whales would be lying out
at the beginning of the channel, waiting.
554
00:39:55,207 --> 00:39:59,567
Sea lions crossed this channel
and a group of adults usually made it across
555
00:39:59,567 --> 00:40:02,683
without any response from the orca.
556
00:40:02,687 --> 00:40:08,287
But if there was one pup in that group,
there could be five adults and one pup,
557
00:40:08,287 --> 00:40:14,156
the orca, from 100 yards out,
detected that and charged right in.
558
00:40:30,247 --> 00:40:34,287
But there was another angle we wanted,
which was lying on the beach,
559
00:40:34,287 --> 00:40:37,567
like a seal, unfortunately,
right in "the dead zone".
560
00:40:37,567 --> 00:40:40,247
We were trying to get a point-of-view shot,
561
00:40:40,247 --> 00:40:45,081
as though it was
the point of view of the killer whale.
562
00:40:46,167 --> 00:40:49,287
This is my partner, Mike DeGruy,
lying in front of the colony.
563
00:40:49,287 --> 00:40:53,807
He's in quite a bit of danger here.
This is exactly where whales beach themselves.
564
00:40:53,807 --> 00:40:57,087
He wouldn't be lying with his back to the ocean,
565
00:40:57,087 --> 00:41:02,922
unless we knew this was not the time
of day in which the whales would attack.
566
00:41:03,967 --> 00:41:09,127
This technique also came in handy
for pointing the camera towards the ocean
567
00:41:09,127 --> 00:41:12,167
while the whales were attacking,
to get low-angle shots
568
00:41:12,167 --> 00:41:17,957
that feel like the whales are bursting out
of the screen and into your living room.
569
00:41:21,687 --> 00:41:24,327
We wanted to get some shots from above,
570
00:41:24,327 --> 00:41:29,647
just to get that much closer to the whales,
to get some fins passing by etc.
571
00:41:29,647 --> 00:41:34,927
Juan Carlos thought this was the first time
the whales had seen a boat with them.
572
00:41:34,927 --> 00:41:38,167
It's a tiny 12-foot Zodiac.
573
00:41:38,167 --> 00:41:42,127
There was some surf,
we had trouble getting in the water,
574
00:41:42,127 --> 00:41:46,887
we finally got through the surf
and were getting the equipment arranged,
575
00:41:46,887 --> 00:41:51,767
and the driver was trying to start
the engine and it wasn't starting.
576
00:41:51,767 --> 00:41:55,527
We'd drifted about 20 feet
from the shore, the waves are crashing,
577
00:41:55,527 --> 00:41:58,127
we looked up and here comes this huge fin,
578
00:41:58,127 --> 00:42:02,287
one of the males had done a right-hand turn,
headed straight for the boat.
579
00:42:02,287 --> 00:42:07,887
This is a dorsal fin that sticks five feet out
of the water, so it's pretty intimidating.
580
00:42:07,887 --> 00:42:12,367
It was obvious, with nothing else
in the water, it was coming straight for the boat.
581
00:42:12,367 --> 00:42:15,007
One of Juan Carlos's worries was
582
00:42:15,007 --> 00:42:20,127
maybe he'll think this is a rival whale
that has moved into his territory.
583
00:42:20,127 --> 00:42:25,607
So we saw that and were yelling
to the pilot, "Start the engine!"
584
00:42:25,607 --> 00:42:27,967
And he's going...
585
00:42:27,967 --> 00:42:32,207
And finally, just like in a movie actually,
586
00:42:32,207 --> 00:42:36,207
just as the whale got about
30 feet away, he started the engine,
587
00:42:36,207 --> 00:42:40,847
and the whale, one of the males called Mel,
588
00:42:40,847 --> 00:42:43,047
curved around and looked at us,
589
00:42:43,047 --> 00:42:46,927
tilted his fin down 'cause
they do that when they look up,
590
00:42:46,927 --> 00:42:51,203
circled around the boat, checked us out, and left.
591
00:42:52,607 --> 00:42:57,967
Next day, I thought if that whale
does the same, circling the boat,
592
00:42:57,967 --> 00:43:01,047
I can get an underwater shot
by submerging my camera.
593
00:43:01,047 --> 00:43:04,287
Stay in the boat safely,
and dip it in the water.
594
00:43:04,287 --> 00:43:07,687
So we had the same experience,
we got in the water,
595
00:43:07,687 --> 00:43:13,287
the whale, a different male, Bernard,
who'd not checked the boat out before,
596
00:43:13,287 --> 00:43:16,247
saw us and headed straight for the boat.
597
00:43:16,247 --> 00:43:19,567
He came in, circled the boat, came up very close,
598
00:43:19,567 --> 00:43:24,687
I stuck my camera in the water,
pulled the trigger and it didn't work.
599
00:43:24,687 --> 00:43:27,887
It's one of those horrifying
moments in film-making.
600
00:43:27,887 --> 00:43:31,647
I've got this perfect shot
and the camera's not working.
601
00:43:31,647 --> 00:43:33,927
I was extremely upset.
602
00:43:33,927 --> 00:43:35,887
I thought that was the last opportunity.
603
00:43:35,887 --> 00:43:38,727
The whales probably
wouldn't approach the Zodiac again.
604
00:43:38,727 --> 00:43:42,567
Having sussed it out,
they weren't curious about it any more.
605
00:43:42,567 --> 00:43:46,607
Besides the fact that
the longer you're on location,
606
00:43:46,607 --> 00:43:50,767
the more obsessed you get
with getting a better shot,
607
00:43:50,767 --> 00:43:54,727
we were watching the sea lions for quite a while,
608
00:43:54,727 --> 00:43:58,527
and we noticed that they preferred
sea lion pups, which are very small.
609
00:43:58,527 --> 00:44:04,887
So we thought the whale should be able
to tell the difference between us and pups.
610
00:44:04,887 --> 00:44:10,327
So that night, we decided it's time
to get in the water with the whales.
611
00:44:10,327 --> 00:44:13,127
We thought we'd watched them
enough to take that chance.
612
00:44:13,127 --> 00:44:15,327
That's the way we played it next day.
613
00:44:15,327 --> 00:44:18,047
We went out, put the Zodiac in the water.
614
00:44:18,047 --> 00:44:21,327
Again, the whales weren't
approaching the boat any more.
615
00:44:21,327 --> 00:44:25,207
So we had to position ourselves
right in the attack channel.
616
00:44:25,207 --> 00:44:29,887
When the tide was right, the whales would
head down this channel to the sea lions.
617
00:44:29,887 --> 00:44:35,007
We decided to put ourselves in the channel
to see them underwater passing by.
618
00:44:35,007 --> 00:44:39,447
So we anchored right on
the edge of the kelp forest,
619
00:44:39,447 --> 00:44:43,647
and saw the fins coming,
about 100 yards down the channel.
620
00:44:43,647 --> 00:44:46,287
So I started getting on my scuba gear.
621
00:44:46,287 --> 00:44:51,047
Juan Carlos looked at me
and started putting on his scuba gear.
622
00:44:51,047 --> 00:44:55,327
I started getting my camera ready.
He was getting his still camera ready.
623
00:44:55,327 --> 00:45:01,447
He was looking at me and I looked at
these two fins coming down the channel.
624
00:45:01,447 --> 00:45:06,647
So I jumped over, held onto the side
of the boat, and Juan Carlos jumped over.
625
00:45:06,647 --> 00:45:10,327
It was the first time he'd done it.
626
00:45:10,327 --> 00:45:14,727
The thing about getting an underwater
shot of the whales is the visibility...
627
00:45:14,727 --> 00:45:18,247
The water's really murky,
so the visibility's about 5-10 feet.
628
00:45:18,247 --> 00:45:22,447
So you've got a 30-foot whale
looming out of the murk at you.
629
00:45:22,447 --> 00:45:26,127
So you didn't want to dive under,
wait in the murk,
630
00:45:26,127 --> 00:45:28,687
and say, "Where's it going to come from?"
631
00:45:28,687 --> 00:45:33,847
You wanted to watch the fin
till the last minute, then duck under.
632
00:45:33,847 --> 00:45:36,087
I also held onto the boat till the last minute
633
00:45:36,087 --> 00:45:41,367
to give me that option of,
"Well, I've made a mistake!"
634
00:45:41,367 --> 00:45:44,647
So the camera's in this hand, boat's in this hand.
635
00:45:44,647 --> 00:45:49,087
Juan Carlos is behind me, Keith Turner's
at the engine, in case of trouble.
636
00:45:49,087 --> 00:45:52,607
Keith's saying, "They're coming,
you'd better swim out now..."
637
00:45:52,607 --> 00:45:56,007
I'm going, "I see them,
I'm waiting, I'm going to swim out..."
638
00:45:56,007 --> 00:45:59,767
These huge fins, talk about
hearing the "Jaws" theme music...
639
00:45:59,767 --> 00:46:03,207
These huge fins are coming straight for us.
640
00:46:03,207 --> 00:46:08,167
And there was that instant when I thought,
"We've made the wrong decision.
641
00:46:08,167 --> 00:46:11,567
"These whales aren't going to be friendly."
Just that moment of fear.
642
00:46:11,567 --> 00:46:17,004
Then I thought, "I can't jump back
in the boat, I'll be so embarrassed."
643
00:46:23,567 --> 00:46:26,767
Out of the gloom materialised
the head of this orca.
644
00:46:26,767 --> 00:46:31,077
It looked at us and slowly swam by.
645
00:46:50,327 --> 00:46:54,527
That was our first encounter.
We came up and Juan Carlos's eyes
646
00:46:54,527 --> 00:47:00,687
were that big, and he was exhilarated
at having finally seen his whales underwater.
647
00:47:00,687 --> 00:47:05,807
That was Mel, a male he's watched
for 17 years, watching the back and the fin,
648
00:47:05,807 --> 00:47:10,800
and bursting out of the water feeding,
but he'd never been that close.
649
00:47:12,007 --> 00:47:15,687
We tried to be very objective
when making the decision.
650
00:47:15,687 --> 00:47:20,407
We looked at the pros and cons
and thought, finally, we could do this.
651
00:47:20,407 --> 00:47:24,847
But it comes down to,
are you going to jump in or not?
652
00:47:24,847 --> 00:47:29,317
And you're not quite sure
until that moment comes.
653
00:47:40,887 --> 00:47:44,847
Research into animal behaviour
is going on all over the world.
654
00:47:44,847 --> 00:47:49,487
Some will provide knowledge essential for
the conservation of the species concerned,
655
00:47:49,487 --> 00:47:53,487
some may have wider applications
and help us develop techniques
656
00:47:53,487 --> 00:47:56,527
that animals themselves
evolved millions of years ago.
657
00:47:56,527 --> 00:48:01,447
But all help us towards an understanding
of the world as a complex, living entity,
658
00:48:01,447 --> 00:48:03,487
and of our own place in it.
659
00:48:03,487 --> 00:48:07,167
Only if we have that
are we likely to be able to maintain
660
00:48:07,167 --> 00:48:10,447
the diverse magnificence of life on Earth,
661
00:48:10,447 --> 00:48:14,647
and ensure that next year, too,
there will be elephants and lions,
662
00:48:14,647 --> 00:48:18,927
army ants and chimpanzees,
and a chance, once more,
663
00:48:18,927 --> 00:48:22,885
to go into a termite mound.
664
00:48:26,487 --> 00:48:30,718
(GRUNTS OF EFFORT)
665
00:48:49,087 --> 00:48:53,407
This, six feet below
the surface of the ground,
666
00:48:53,407 --> 00:48:56,087
is the cellar of the fortress.
667
00:48:56,087 --> 00:49:03,526
Its floor is studded with shafts
which go down as much as 12-14 feet...
668
00:49:04,087 --> 00:49:06,607
Did I... Did something
go wrong with the words?
669
00:49:06,607 --> 00:49:09,967
We could do with another take,
if you're willing...
670
00:49:09,967 --> 00:49:13,959
Six feet below the surface...
63375
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