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1
00:00:03,570 --> 00:00:06,139
In a world where only
the fittest survive,
2
00:00:06,173 --> 00:00:09,777
millions of years of evolution
have equipped a lucky few
3
00:00:09,810 --> 00:00:14,882
with extreme adaptations
and formidable features.
4
00:00:14,915 --> 00:00:16,483
It's an endless showdown,
5
00:00:16,517 --> 00:00:19,553
and you're about to get
a front row seat.
6
00:00:19,586 --> 00:00:21,855
This adventure isn't
for the squeamish
7
00:00:21,889 --> 00:00:24,291
or the faint of heart.
8
00:00:24,324 --> 00:00:26,993
from arid deserts
to the deepest oceans,
9
00:00:27,027 --> 00:00:28,362
we'll be counting down
10
00:00:28,395 --> 00:00:31,565
some of the greatest wildlife
moments ever captured...
11
00:00:36,470 --> 00:00:40,074
when life in the wild
reaches a fever pitch...
12
00:00:40,107 --> 00:00:42,276
And when the most daring
risk all
13
00:00:42,309 --> 00:00:45,846
to ensure the survival
of the next generation.
14
00:00:45,879 --> 00:00:48,815
these incredible scenes
will compete for the title
15
00:00:48,849 --> 00:00:50,784
of most amazing moment.
16
00:00:50,817 --> 00:00:54,287
coming at you in five
jaw-dropping categories:
17
00:00:54,321 --> 00:00:55,923
Deadly showdowns...
18
00:00:55,956 --> 00:00:57,624
Freaks of nature...
19
00:00:57,658 --> 00:00:59,059
Gang wars...
20
00:00:59,092 --> 00:01:01,127
Rough romance...
21
00:01:01,161 --> 00:01:03,563
And extreme parenting.
22
00:01:03,597 --> 00:01:06,300
Get ready for a wild ride,
23
00:01:06,333 --> 00:01:07,634
coming up now
24
00:01:07,668 --> 00:01:10,437
incredible animal moments.
25
00:01:17,911 --> 00:01:19,513
The animal kingdom...
26
00:01:19,546 --> 00:01:24,851
a world where predators rule
and prey flee for their lives.
27
00:01:24,885 --> 00:01:26,553
those at the top
of the food chain
28
00:01:26,587 --> 00:01:30,458
have killer moves
and extraordinary features...
29
00:01:30,490 --> 00:01:32,525
Fearsome fangs...
30
00:01:32,559 --> 00:01:34,461
Supersonic speed...
31
00:01:34,494 --> 00:01:36,296
And deadly precision.
32
00:01:38,899 --> 00:01:40,834
It's a battle of the extremes,
33
00:01:40,867 --> 00:01:45,171
and we're counting down
the world's deadliest showdowns.
34
00:01:50,577 --> 00:01:53,580
Making a debut in our countdown
at number 5
35
00:01:53,614 --> 00:01:56,550
is the killer
everyone loves to hate.
36
00:02:01,588 --> 00:02:04,591
This ancient hunter has ruled
these watery depths
37
00:02:04,625 --> 00:02:07,628
for over 450 million years.
38
00:02:10,697 --> 00:02:14,501
It's outlived the dinosaur
and five mass extinctions,
39
00:02:14,534 --> 00:02:16,736
yet this highly evolved
super fish
40
00:02:16,770 --> 00:02:19,673
continues to be vilified.
41
00:02:19,706 --> 00:02:21,708
Jaws
42
00:02:21,742 --> 00:02:25,312
depicted the shark
as a mindless killer,
43
00:02:25,345 --> 00:02:27,080
but in this real-life drama
44
00:02:27,114 --> 00:02:30,184
the great white is cunning
and calculating.
45
00:02:37,324 --> 00:02:40,360
when hunting seals
off the coast of South Africa,
46
00:02:40,394 --> 00:02:42,830
this female's
highly evolved senses
47
00:02:42,863 --> 00:02:45,733
lead her to her next victim.
48
00:02:50,003 --> 00:02:53,039
when the colony leaves the
safety of their rocky island,
49
00:02:53,073 --> 00:02:55,876
not a single splash
goes unheard.
50
00:03:04,851 --> 00:03:07,854
the great white's nostrils
can detect a drop of seal oil
51
00:03:07,888 --> 00:03:09,356
in a body of water
52
00:03:09,389 --> 00:03:12,959
the equivalent of
an olympic-sized swimming pool!
53
00:03:17,531 --> 00:03:20,401
Tiny jelly-filled pores
on her nose
54
00:03:20,434 --> 00:03:23,537
can absorb minute
electrical pulses...
55
00:03:27,340 --> 00:03:29,275
Meaning this fishy beast
56
00:03:29,309 --> 00:03:32,612
can home in
on a single seal's heartbeat.
57
00:03:34,915 --> 00:03:36,583
This super predator's eyes
58
00:03:36,616 --> 00:03:39,686
are also five times
the size of ours,
59
00:03:39,720 --> 00:03:42,423
and behind each retina
lie crystal plates
60
00:03:42,456 --> 00:03:45,826
that reflect light
in the murky water.
61
00:03:49,629 --> 00:03:52,465
Once you're on the radar,
there's nowhere to hide
62
00:03:52,499 --> 00:03:55,836
from this highly evolved
master of the deep.
63
00:04:26,533 --> 00:04:29,136
This is the crowned king
of speed.
64
00:04:31,638 --> 00:04:34,174
Cheetahs are the fastest animals
on the planet,
65
00:04:34,207 --> 00:04:37,077
and these brothers
are on the hunt.
66
00:04:37,110 --> 00:04:39,412
On today's menu, wildebeest,
67
00:04:39,446 --> 00:04:42,783
one of africa's
fastest antelopes.
68
00:04:42,816 --> 00:04:44,651
The brothers can outrun them,
69
00:04:44,684 --> 00:04:48,154
but they're sprinters,
not distance runners.
70
00:04:48,188 --> 00:04:49,890
They can easily overheat
71
00:04:49,923 --> 00:04:52,192
and must get close enough
to close the deal
72
00:04:52,225 --> 00:04:56,096
before they explode into action.
73
00:04:56,129 --> 00:04:58,398
These impressive runners
can reach top speeds
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00:04:58,431 --> 00:05:01,601
of 75 miles per hour,
75
00:05:01,635 --> 00:05:06,073
but their acceleration
is what's truly impressive.
76
00:05:06,106 --> 00:05:10,611
Zero to 60 in three seconds...
or just three strides.
77
00:05:29,162 --> 00:05:33,733
This round goes to the sprite
and spindly wildebeest.
78
00:05:33,767 --> 00:05:37,938
the cat is no quitter, but
he needs to catch his breath.
79
00:05:37,971 --> 00:05:39,639
the wildebeest
are on the move,
80
00:05:39,673 --> 00:05:41,975
and the brothers
must go for broke.
81
00:05:51,418 --> 00:05:53,287
They dig their specialized claws
82
00:05:53,320 --> 00:05:55,289
into the heels
of the wildebeest.
83
00:06:02,562 --> 00:06:07,167
the brothers live up
to their 50% strike rate.
84
00:06:07,200 --> 00:06:09,769
Half their hunts end in success;
85
00:06:09,803 --> 00:06:14,608
the other half
are dangerous life lessons.
86
00:06:14,641 --> 00:06:20,113
Theirs is a delicate balance
between risk and reward.
87
00:06:23,283 --> 00:06:26,086
In the Namibian desert,
one remarkable animal
88
00:06:26,119 --> 00:06:30,490
has developed
a unique predatory strategy.
89
00:06:30,523 --> 00:06:32,025
This is the caracal...
90
00:06:32,058 --> 00:06:35,428
A distant relative of the lynx.
91
00:06:35,462 --> 00:06:39,566
She may be slight, but this
cat's got a killer plan...
92
00:06:45,772 --> 00:06:49,342
muscle-packed hind legs
and a super flexible spine
93
00:06:49,376 --> 00:06:54,147
allow her to jump like
an acrobat off a springboard...
94
00:06:54,180 --> 00:06:56,783
More than six feet in the air.
95
00:07:03,723 --> 00:07:06,292
At a small watering hole,
a flock of weavers
96
00:07:06,326 --> 00:07:09,930
provides a perfect opportunity
for this remarkable athlete.
97
00:07:13,533 --> 00:07:15,001
She's off.
98
00:07:21,074 --> 00:07:24,844
The caracal's powerful hind legs
and finely tuned reflexes
99
00:07:24,878 --> 00:07:28,749
make her agile.
100
00:07:28,782 --> 00:07:30,317
The weaver's fast,
101
00:07:30,350 --> 00:07:32,986
but this feline's
locked her sights on it.
102
00:08:11,591 --> 00:08:15,595
It's over in seconds...
103
00:08:15,628 --> 00:08:19,599
And for now, this feathery snack
will have to do.
104
00:08:24,437 --> 00:08:25,838
In a nearby desert,
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00:08:25,872 --> 00:08:29,442
this yellow mongoose
is the resident cobra hitman.
106
00:08:33,546 --> 00:08:35,248
It's game on.
107
00:08:40,320 --> 00:08:43,290
A strike from a cobra
could kill ten men.
108
00:08:43,323 --> 00:08:44,658
But this desert carnivore
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00:08:44,691 --> 00:08:48,895
has guts of steel
and built-in immunity.
110
00:08:50,263 --> 00:08:53,833
The cobra's speedy defense
strike is its trump card...
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00:08:53,867 --> 00:08:57,003
the only thing
that'll keep him alive.
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Each is the other's prey,
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but also a deadly opponent.
114
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they know that turning their
back could be a fatal mistake.
115
00:09:09,049 --> 00:09:10,450
The mongoose circles,
116
00:09:10,483 --> 00:09:13,720
looking for a weakness
in the cobra's defense.
117
00:09:17,590 --> 00:09:21,394
a quick strike needs
a matrix-style getaway.
118
00:09:35,075 --> 00:09:39,880
The cobra tries intimidation...
But it's not enough.
119
00:09:39,913 --> 00:09:44,251
They size each other up...
and punches fly!
120
00:09:44,284 --> 00:09:47,154
The cobra delivers
its winning blow.
121
00:09:53,827 --> 00:09:56,697
He's been spared from becoming
mongoose dinner...
122
00:09:56,729 --> 00:09:58,531
This time around.
123
00:10:00,667 --> 00:10:04,337
Now for the ultimate face-off.
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Coming in at number 1
in this category
125
00:10:06,806 --> 00:10:08,808
is an unlikely contender,
126
00:10:08,842 --> 00:10:12,879
yet this gang of intrepid
heifers won't disappoint.
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00:10:15,615 --> 00:10:18,485
the Savannah is set
for the hunger games...
128
00:10:18,518 --> 00:10:21,654
the age-old contest
between hunter and hunted.
129
00:10:24,491 --> 00:10:27,327
At the top of the food chain,
the lions...
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00:10:27,360 --> 00:10:30,063
the biggest,
baddest cats around.
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00:10:30,096 --> 00:10:32,832
but word on the plains
is that the cape buffalo
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00:10:32,866 --> 00:10:35,936
is the most dangerous beast
in the game...
133
00:10:35,969 --> 00:10:39,372
An adult bull can weigh
up to 2,000 pounds!
134
00:10:41,841 --> 00:10:45,011
with a helmet of horns
and deadly, sharp hooves,
135
00:10:45,044 --> 00:10:46,579
they are perfectly equipped
136
00:10:46,613 --> 00:10:49,449
to be the lion's
greatest adversary.
137
00:10:52,652 --> 00:10:57,690
they're built to kill...
Like an army of gladiators.
138
00:10:57,724 --> 00:11:00,894
none of the other cats
will take on a buffalo,
139
00:11:00,927 --> 00:11:04,564
but to these famished lions,
they're irresistible.
140
00:11:14,507 --> 00:11:18,878
When the going gets tough, this
angry gang defends their own.
141
00:11:28,721 --> 00:11:30,990
Without backup, a lone lioness
142
00:11:31,024 --> 00:11:33,660
is no match
for this deadly showdown
143
00:11:33,693 --> 00:11:37,197
and the angriest beasts
on the Savannah.
144
00:11:38,932 --> 00:11:41,701
next on
incredible animal moments,
145
00:11:41,734 --> 00:11:46,606
we count down nature's freakiest
and most curious creatures.
146
00:11:49,709 --> 00:11:54,414
So far we've seen killer moves
and deadly showdowns.
147
00:11:54,447 --> 00:11:58,785
Now, for the strange
and the bizarre.
148
00:11:58,818 --> 00:12:00,953
these characters
are quick killers,
149
00:12:00,987 --> 00:12:06,159
masters of disguise,
kings and queens of camouflage.
150
00:12:06,192 --> 00:12:10,029
evolution has equipped them
with some peculiar adaptations.
151
00:12:10,063 --> 00:12:13,266
and these daredevils
will leave you speechless.
152
00:12:18,071 --> 00:12:20,540
In the dense canopy
of the Asian jungle,
153
00:12:20,573 --> 00:12:23,776
a swift killer lies in wait.
154
00:12:23,810 --> 00:12:26,780
in plain sight...
But virtually invisible...
155
00:12:26,813 --> 00:12:30,283
It's a master of disguise.
156
00:12:30,316 --> 00:12:33,419
With its zen-like appearance
of quizzical intelligence,
157
00:12:33,453 --> 00:12:35,755
it's not surprising
that the praying mantis
158
00:12:35,788 --> 00:12:39,925
has been worshipped as a god.
159
00:12:39,959 --> 00:12:46,065
but those arms in their
prayer-like pose are deceptive.
160
00:12:46,099 --> 00:12:49,002
Reports of snakes, small birds
and mammals
161
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succumbing to its death grip
are no myth.
162
00:12:59,145 --> 00:13:02,915
a smaller male mantis
is a pushover in comparison.
163
00:13:06,486 --> 00:13:10,423
Their eyes are made of 10,000
separate specialized zones,
164
00:13:10,456 --> 00:13:13,926
giving it excellent
stereoscopic vision...
165
00:13:13,960 --> 00:13:19,065
Able to see up to 50 feet away.
166
00:13:19,098 --> 00:13:21,667
grooming himself,
this male doesn't realize
167
00:13:21,701 --> 00:13:25,438
the female in town
is not looking for a mate.
168
00:13:25,471 --> 00:13:27,873
She's looking for lunch.
169
00:13:27,907 --> 00:13:29,776
Her spring-loaded prayer stance
170
00:13:29,809 --> 00:13:33,479
strikes in 30 thousandths
of a second...
171
00:13:33,513 --> 00:13:35,615
Faster than the eye can see.
172
00:13:40,553 --> 00:13:43,623
The powerful spiked forearms
have a crushing grip
173
00:13:43,656 --> 00:13:48,027
that is nearly impossible
to escape.
174
00:13:48,061 --> 00:13:51,598
A mantis eats its prey alive...
175
00:13:51,631 --> 00:13:53,233
And for this cannibal,
176
00:13:53,266 --> 00:13:57,871
decapitation is the preferred
way to serve up today's meal.
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00:14:03,509 --> 00:14:07,413
With names like trioceros,
bradypodion and archaius,
178
00:14:07,447 --> 00:14:10,717
you'd think we had stepped back
into the Jurassic age.
179
00:14:12,385 --> 00:14:14,187
But these cold-blooded creatures
180
00:14:14,220 --> 00:14:19,425
are one of the most successful
hunters in the jungle today.
181
00:14:19,459 --> 00:14:22,896
you've got to be quick
when your food moves this fast.
182
00:14:25,431 --> 00:14:28,434
well-developed eyes
that pivot independently
183
00:14:28,468 --> 00:14:31,938
allow it to see
almost 360 degrees.
184
00:14:33,439 --> 00:14:36,442
There is nowhere to hide.
185
00:14:36,476 --> 00:14:40,313
These strange reptiles
are chameleons.
186
00:14:40,346 --> 00:14:42,548
Slow, deliberate steps
187
00:14:42,582 --> 00:14:45,218
allow them to get close
to their target.
188
00:14:49,922 --> 00:14:54,193
Chameleons are not designed
for the chase.
189
00:14:54,227 --> 00:14:55,895
Their secret weapon?
190
00:14:55,928 --> 00:15:01,267
a ballistic tongue that
accelerates at over 40 g's...
191
00:15:01,300 --> 00:15:03,636
That's more than 10 times
the g-force
192
00:15:03,669 --> 00:15:05,971
of a NASA space shuttle
on takeoff.
193
00:15:17,183 --> 00:15:18,618
There is nothing in the jungle
194
00:15:18,651 --> 00:15:21,387
that can outpace
the chameleon's tongue.
195
00:15:23,289 --> 00:15:26,359
It is deadly accurate.
196
00:15:26,392 --> 00:15:28,361
Once you're within
striking distance,
197
00:15:28,394 --> 00:15:31,030
chances of escape are slim.
198
00:15:36,269 --> 00:15:41,908
in this Indonesian jungle
lives the king of camouflage.
199
00:15:41,941 --> 00:15:45,211
this tiny egg,
no bigger than a grain of rice,
200
00:15:45,244 --> 00:15:48,881
will give rise to one of the
largest insects on the planet,
201
00:15:48,915 --> 00:15:51,785
the atlas moth.
202
00:15:51,818 --> 00:15:55,955
for it to reach monstrous
proportions, he needs to eat.
203
00:15:55,988 --> 00:16:01,126
and for the first six weeks
of his life, that's all he does.
204
00:16:01,160 --> 00:16:04,697
It's not long before he's
too big for his own skin.
205
00:16:04,730 --> 00:16:08,667
his gooey insides bulge,
and his old bodysuit pops open
206
00:16:08,701 --> 00:16:12,038
to allow the caterpillar
to mature.
207
00:16:12,071 --> 00:16:18,244
He will shed his skin four times
as he grows fatter and fatter.
208
00:16:18,277 --> 00:16:20,579
This grub continues to binge-eat
209
00:16:20,613 --> 00:16:25,151
until he's the size
of a hot dog.
210
00:16:25,184 --> 00:16:30,322
and then, it's time
for a costume change.
211
00:16:30,356 --> 00:16:32,000
The caterpillar starts
to construct
212
00:16:32,024 --> 00:16:35,828
his own silk changing room.
213
00:16:35,862 --> 00:16:41,468
one month later,
it's time for the big reveal.
214
00:16:41,501 --> 00:16:43,970
with a wingspan
of more than 12 inches,
215
00:16:44,003 --> 00:16:45,972
it truly is a mammoth moth.
216
00:16:54,247 --> 00:16:58,752
This once fat ugly duckling
is now a mosaic of color,
217
00:16:58,784 --> 00:17:02,554
and it's not just for show.
218
00:17:02,588 --> 00:17:08,561
the tips of the moth's wings
resemble the face of a cobra.
219
00:17:08,594 --> 00:17:10,529
When threatened by predators,
220
00:17:10,563 --> 00:17:13,566
this transformer will imitate
this deadly snake
221
00:17:13,599 --> 00:17:16,402
by moving its wings
back and forth.
222
00:17:18,838 --> 00:17:22,041
despite this elaborate
and miraculous makeover,
223
00:17:22,074 --> 00:17:26,011
the adult atlas moth has
little over a week to live.
224
00:17:28,648 --> 00:17:31,518
with no mouth,
he is unable to feed,
225
00:17:31,551 --> 00:17:37,157
so his only goal is to find
a mate and continue his legacy.
226
00:17:42,061 --> 00:17:45,631
next on our countdown
is the stuff of nightmares.
227
00:17:48,534 --> 00:17:50,102
When darkness falls,
228
00:17:50,136 --> 00:17:54,207
no creature in these stables
is safe.
229
00:17:54,240 --> 00:17:57,009
It's the vampire bat,
230
00:17:57,043 --> 00:18:00,246
the only bat in the world
that feeds on blood.
231
00:18:05,217 --> 00:18:07,319
It's a master of echolocation
232
00:18:07,353 --> 00:18:09,722
and uses bouncing
ultrasonic sound waves
233
00:18:09,755 --> 00:18:12,858
to locate its victim.
234
00:18:12,892 --> 00:18:16,429
It can tell where the warm blood
runs close to the skin,
235
00:18:16,462 --> 00:18:19,165
thanks to heat sensors
near its nose.
236
00:18:22,668 --> 00:18:25,404
Dinner... Is served.
237
00:18:25,438 --> 00:18:27,874
With the sharpest teeth
in the animal kingdom,
238
00:18:27,907 --> 00:18:30,410
the vampire bat
gently cuts through the skin
239
00:18:30,443 --> 00:18:32,745
and sucks up the blood.
240
00:18:36,115 --> 00:18:39,218
And thanks to a local anesthetic
in the bat's spit,
241
00:18:39,251 --> 00:18:42,721
the victim doesn't feel a thing.
242
00:18:45,224 --> 00:18:47,526
It may be the size
of your thumb,
243
00:18:47,560 --> 00:18:52,231
but the vampire has
a life-sized appetite.
244
00:18:52,264 --> 00:18:55,768
in just one year,
a colony of 100 vampires
245
00:18:55,801 --> 00:19:00,472
can drain the blood
of 25 horses.
246
00:19:00,506 --> 00:19:02,608
Without its blood fix
every night,
247
00:19:02,642 --> 00:19:04,811
the bat would starve to death.
248
00:19:07,113 --> 00:19:08,781
But through super hearing,
249
00:19:08,814 --> 00:19:11,950
the vampire will recognize
this horse's breathing,
250
00:19:11,984 --> 00:19:15,955
and tomorrow night
he will be back for more.
251
00:19:23,429 --> 00:19:28,935
This cold-blooded eating machine
has a taste for his own kind.
252
00:19:28,968 --> 00:19:30,503
And when he's on the hunt,
253
00:19:30,536 --> 00:19:33,906
he goes straight for
the lion's share...
254
00:19:33,939 --> 00:19:37,976
whether it fits
into his mouth or not.
255
00:19:49,321 --> 00:19:52,357
Capable of injecting enough
venom to kill an elephant,
256
00:19:52,391 --> 00:19:56,328
a king cobra's bite is
one of the deadliest on earth.
257
00:19:58,397 --> 00:20:02,968
Once the venom has taken effect,
it's time to eat this rat snake.
258
00:20:08,774 --> 00:20:12,478
First, he's got to locate and
line up the head of his meal.
259
00:20:15,347 --> 00:20:18,150
having no limbs,
he uses his mouth...
260
00:20:18,184 --> 00:20:20,853
Slowly slithering
toward the head.
261
00:20:23,856 --> 00:20:26,859
once lined up
he starts to swallow.
262
00:20:32,832 --> 00:20:35,368
He's got a deceptively
small mouth,
263
00:20:35,401 --> 00:20:38,571
but elastic tendons allow him
to stretch it incredibly wide
264
00:20:38,604 --> 00:20:40,773
to accommodate big meals.
265
00:20:45,745 --> 00:20:51,050
It's not about what fits
in his mouth,
266
00:20:51,083 --> 00:20:53,886
but what fits through his mouth.
267
00:20:53,919 --> 00:20:58,557
Snakes can't make themselves
longer,
268
00:20:58,591 --> 00:21:00,626
but they can stretch wider,
269
00:21:00,659 --> 00:21:05,063
stuffing in their prey
and slowly expanding outwards.
270
00:21:06,899 --> 00:21:09,835
Eyes too big for its stomach?
271
00:21:09,869 --> 00:21:13,139
not likely to happen
with this gruesome killer.
272
00:21:16,709 --> 00:21:19,478
And with that... Dinner's done!
273
00:21:22,314 --> 00:21:24,082
And now... Another collection
274
00:21:24,116 --> 00:21:27,886
of hair-raising
and heart-pounding images.
275
00:21:27,920 --> 00:21:30,389
from hippo wars
to baboon battles,
276
00:21:30,422 --> 00:21:34,359
we count down the most ferocious
fights captured on camera.
277
00:21:35,995 --> 00:21:38,364
With the onset of new seasons,
278
00:21:38,397 --> 00:21:42,434
males compete for territory
and mating rights.
279
00:21:42,468 --> 00:21:44,370
It's a brutal fight.
280
00:21:44,403 --> 00:21:47,606
Some wrestle for dominance...
281
00:21:47,640 --> 00:21:51,077
Others bite, clash... Or kill.
282
00:21:51,110 --> 00:21:53,713
Hold on to your seats
for another round...
283
00:21:53,746 --> 00:21:57,717
As we count down the fiercest
fights in the animal kingdom.
284
00:22:02,721 --> 00:22:04,923
This deadly mega-mouth
makes his entrance
285
00:22:04,957 --> 00:22:08,661
at number 3
on our countdown of gang wars.
286
00:22:09,995 --> 00:22:12,030
With tusks more than a foot long
287
00:22:12,064 --> 00:22:14,199
and the strongest bite
on the planet,
288
00:22:14,233 --> 00:22:18,070
it's one of the most dangerous
animals in Africa.
289
00:22:18,103 --> 00:22:20,939
But this buxom beast
is a vegetarian
290
00:22:20,973 --> 00:22:25,511
and feeds on nearly 90 pounds
of grass a day.
291
00:22:25,544 --> 00:22:28,047
So why the mouthful
of menacing teeth?
292
00:22:30,049 --> 00:22:33,519
Their sole purpose is battle.
293
00:22:33,552 --> 00:22:36,555
When it comes to choosing
territories and females,
294
00:22:36,589 --> 00:22:40,993
male hippos will use their teeth
to fight to the death.
295
00:22:41,026 --> 00:22:43,428
it's the height
of zambia's dry season,
296
00:22:43,462 --> 00:22:46,065
and this male's territory
has been reduced
297
00:22:46,098 --> 00:22:48,467
to little more
than a shallow stream.
298
00:22:50,936 --> 00:22:53,605
he's had to go
in search of deeper water...
299
00:22:53,639 --> 00:22:55,841
In enemy territory.
300
00:22:57,643 --> 00:23:02,681
This prime section of the river
is owned by a dominant male.
301
00:23:02,715 --> 00:23:05,351
The intruder can either
put his pride aside
302
00:23:05,384 --> 00:23:08,320
and submit to the resident male
303
00:23:08,354 --> 00:23:11,057
or fight him for it.
304
00:23:12,291 --> 00:23:15,194
He chooses war.
305
00:23:15,227 --> 00:23:19,431
The massive yawn confirms
the intruder's challenge.
306
00:23:19,465 --> 00:23:22,535
he sprays his feces
and testosterone through the air
307
00:23:22,568 --> 00:23:24,570
to mark his territory.
308
00:23:27,573 --> 00:23:29,742
The intruder stands his ground.
309
00:23:32,811 --> 00:23:34,913
And the battle is on.
310
00:23:53,132 --> 00:23:55,468
A 2-inch-thick hide provides
some protection
311
00:23:55,501 --> 00:23:58,971
against each other's
ivory fangs,
312
00:23:59,004 --> 00:24:02,608
but the insides of their mouths
are soft and gummy.
313
00:24:04,977 --> 00:24:07,413
This is their target.
314
00:24:07,446 --> 00:24:11,150
Their lower canines impale.
315
00:24:11,183 --> 00:24:13,452
The intruder uses
his monster mouth
316
00:24:13,485 --> 00:24:19,057
to lift the dominant male out
of the water like a bulldozer.
317
00:24:19,091 --> 00:24:22,094
But this two-ton bull's
no pushover.
318
00:24:39,311 --> 00:24:42,514
The intruder admits defeat.
319
00:24:42,548 --> 00:24:45,584
He's lucky to escape
with his life...
320
00:24:45,617 --> 00:24:47,352
This time around.
321
00:24:52,091 --> 00:24:53,859
Coming in at number 2...
322
00:24:53,892 --> 00:25:00,165
These feisty African geladas are
no strangers to deadly duels.
323
00:25:00,199 --> 00:25:02,201
They share the same
social structure
324
00:25:02,234 --> 00:25:04,703
as their baboon cousins.
325
00:25:04,737 --> 00:25:07,473
Each herd has one dominant male,
326
00:25:07,506 --> 00:25:11,210
and it's the job of this
ruling gelada, the baboon king,
327
00:25:11,243 --> 00:25:15,547
to keep his family of females
and young protected.
328
00:25:15,581 --> 00:25:19,919
So far it's twelve babies
and counting.
329
00:25:19,952 --> 00:25:21,554
But the larger the family,
330
00:25:21,587 --> 00:25:23,622
the harder it is
for this ruling male
331
00:25:23,655 --> 00:25:27,459
to keep up with his
fatherly obligations.
332
00:25:27,493 --> 00:25:30,763
And now, he faces
a serious problem.
333
00:25:30,796 --> 00:25:32,665
There's a new kid on the block.
334
00:25:32,698 --> 00:25:36,902
He's the king's younger brother,
and he's vying for the throne.
335
00:25:40,105 --> 00:25:45,711
the baboon king keeps guard of
the herd on their daily commute.
336
00:25:45,744 --> 00:25:49,081
But today is no ordinary day.
337
00:25:49,114 --> 00:25:51,316
It's an ambush.
338
00:25:51,350 --> 00:25:55,554
And this band of bachelors
has been waiting for him.
339
00:25:55,587 --> 00:25:57,789
It's four against one.
340
00:26:04,196 --> 00:26:06,665
Retreat is the only option.
341
00:26:09,568 --> 00:26:12,271
They know that if they can help
bring down the king,
342
00:26:12,304 --> 00:26:15,274
they'll move up a notch
in the mating chain.
343
00:26:20,012 --> 00:26:23,482
he catches his breath
in the top of a tree...
344
00:26:23,515 --> 00:26:25,584
Then makes a break for it.
345
00:26:28,387 --> 00:26:32,958
He runs for open space
and right into a trap
346
00:26:32,991 --> 00:26:34,960
where his brother
has been waiting.
347
00:26:40,199 --> 00:26:44,637
This battle will be mano a mano.
348
00:26:47,306 --> 00:26:51,877
the fury of the fight shows
just how much is at stake here...
349
00:26:51,910 --> 00:26:56,148
Possibly the end of one reign
and the beginning of another.
350
00:27:10,395 --> 00:27:14,933
The king delivers a savage bite,
straight to his brother's face.
351
00:27:17,803 --> 00:27:19,938
The fight is over.
352
00:27:21,807 --> 00:27:24,276
The challenger is badly injured.
353
00:27:24,309 --> 00:27:28,213
His older brother has left him
with the ultimate scar.
354
00:27:28,247 --> 00:27:31,484
He's lost a canine,
the mark of manhood.
355
00:27:35,888 --> 00:27:40,526
Against all odds, the king has
clawed his way back to the top
356
00:27:40,559 --> 00:27:43,028
and has secured
this mountain throne
357
00:27:43,061 --> 00:27:45,797
at least for one more year.
358
00:27:52,538 --> 00:27:54,707
Enter into japan's wild woods
359
00:27:54,740 --> 00:27:59,044
and you'll hear
the honeybees abuzz.
360
00:27:59,077 --> 00:28:02,280
Beneath the cool, mossy exterior
of their fortress,
361
00:28:02,314 --> 00:28:04,950
these forest dwellers
are working around the clock
362
00:28:04,983 --> 00:28:07,619
to nurture their hive
and protect their young.
363
00:28:14,193 --> 00:28:15,594
During the summer months,
364
00:28:15,627 --> 00:28:19,798
worker bees tirelessly produce
honey for the hive.
365
00:28:19,831 --> 00:28:22,267
They spend their days
collecting nectar;
366
00:28:22,301 --> 00:28:25,838
then regurgitate the honey
into cells in the honeycomb.
367
00:28:29,074 --> 00:28:32,210
Their teamwork has produced
a thriving colony...
368
00:28:32,244 --> 00:28:35,881
and it's a treasure chest
just waiting to be plundered.
369
00:28:37,849 --> 00:28:40,852
These tiny honeybees
are easy prey
370
00:28:40,886 --> 00:28:45,023
for the largest hornet
in the world.
371
00:28:45,057 --> 00:28:48,827
Two inches long and 20 times
heavier than the honeybee,
372
00:28:48,860 --> 00:28:50,662
the giant bamboo hornet
373
00:28:50,696 --> 00:28:52,932
can wipe out
tens of thousands of bees
374
00:28:52,965 --> 00:28:55,267
in a matter of hours.
375
00:28:55,300 --> 00:28:57,335
They've hit the jackpot!
376
00:29:01,573 --> 00:29:03,208
With an enemy in their midst,
377
00:29:03,242 --> 00:29:05,911
the honeybees hatch
a battle plan.
378
00:29:07,312 --> 00:29:10,549
This isn't their first rodeo!
379
00:29:10,582 --> 00:29:14,119
Working in groups, the bees
overwhelm the giant hornet,
380
00:29:14,152 --> 00:29:18,223
biting and stinging her
repeatedly.
381
00:29:18,257 --> 00:29:20,092
They disperse a pheromone,
382
00:29:20,125 --> 00:29:21,994
which alerts
the rest of the hive
383
00:29:22,027 --> 00:29:23,996
and calls in fresh recruits.
384
00:29:27,299 --> 00:29:29,501
Clusters of bees mob the hornet
385
00:29:29,534 --> 00:29:32,170
and block the breathing holes
on her abdomen.
386
00:29:36,675 --> 00:29:38,577
Their aim is to heat up
her temperature
387
00:29:38,610 --> 00:29:40,745
beyond her thermal limit.
388
00:29:44,783 --> 00:29:48,787
Inside the bee ball
it's 116 degrees...
389
00:29:48,820 --> 00:29:52,090
And the smothered hornet
is quickly overheating.
390
00:29:56,495 --> 00:29:59,999
The giant finally gives up
her brave fight...
391
00:30:00,032 --> 00:30:04,737
Defeated by a gang of tiny bees
one fifth her size.
392
00:30:07,372 --> 00:30:10,275
Get ready for the romantic
and riveting...
393
00:30:10,309 --> 00:30:14,847
As we continue our countdown
incredible animal moments.
394
00:30:16,648 --> 00:30:20,252
At certain times of the year,
jungles, deserts and prairies
395
00:30:20,285 --> 00:30:24,956
sing with the sounds
of romance and courtship.
396
00:30:24,990 --> 00:30:29,828
For some, it can be a friendly,
romantic and charming affair.
397
00:30:29,861 --> 00:30:32,964
For others... Not so much.
398
00:30:35,100 --> 00:30:40,105
So get ready for the raunchy,
risqué, and downright dirty...
399
00:30:40,138 --> 00:30:43,274
And see what really happens
behind the curtain,
400
00:30:43,308 --> 00:30:47,479
next on our countdown
incredible animal moments.
401
00:30:53,251 --> 00:30:54,753
In the jungles of Panama,
402
00:30:54,786 --> 00:30:57,055
it's the onset
of the rainy season...
403
00:30:57,089 --> 00:31:00,059
and the forest echoes
with the music of frogs.
404
00:31:07,065 --> 00:31:10,302
One of these small amphibians
has hopped on to our countdown
405
00:31:10,335 --> 00:31:12,370
to occupy third place.
406
00:31:15,507 --> 00:31:18,143
a male glass frog
calls for a mate...
407
00:31:20,746 --> 00:31:24,216
And a female responds.
408
00:31:24,249 --> 00:31:27,719
Spurred by the rain, they've
both come down to the stream
409
00:31:27,753 --> 00:31:33,292
to engage in an intimate
and ancient ritual.
410
00:31:33,325 --> 00:31:36,728
these amphibians spend
the dry season in the canopy,
411
00:31:36,762 --> 00:31:40,399
but once the rains come,
it's time to mate.
412
00:31:45,570 --> 00:31:47,072
Glass frogs get their name
413
00:31:47,105 --> 00:31:50,308
from their unique style
of camouflage.
414
00:31:50,342 --> 00:31:54,146
They don't change their colors
like some animals.
415
00:31:54,179 --> 00:31:58,984
the glass frog's belly
is completely translucent.
416
00:31:59,017 --> 00:32:01,620
In the deep green wetness
of the rainforest,
417
00:32:01,653 --> 00:32:05,157
it's a perfect disguise.
418
00:32:05,190 --> 00:32:07,626
before mating,
the female glass frog
419
00:32:07,659 --> 00:32:11,229
hops around on a leaf,
collecting water,
420
00:32:11,263 --> 00:32:15,768
causing her to swell up
and hydrate the eggs inside her.
421
00:32:15,801 --> 00:32:18,070
when the female
releases the eggs,
422
00:32:18,103 --> 00:32:22,608
the male catches them with his
hind legs and fertilizes them.
423
00:32:22,641 --> 00:32:25,477
as the eggs develop
over the next two weeks,
424
00:32:25,510 --> 00:32:30,215
both the male and female
play important parental roles.
425
00:32:30,248 --> 00:32:33,118
One frog takes a turn
hydrating the eggs,
426
00:32:33,151 --> 00:32:37,188
while the other
helps stand guard.
427
00:32:37,222 --> 00:32:39,291
This shared parental daycare
428
00:32:39,324 --> 00:32:43,995
will go a long way to ensure
the survival of their offspring.
429
00:32:47,866 --> 00:32:49,434
Coming in at number 2...
430
00:32:49,468 --> 00:32:51,937
Although these contenders
are cold blooded,
431
00:32:51,970 --> 00:32:54,182
they know how to keep things
hot and steamy
432
00:32:54,206 --> 00:32:56,041
on the jungle floor.
433
00:33:00,712 --> 00:33:04,549
vipers mate in a ritual
of gently rubbing bodies.
434
00:33:08,753 --> 00:33:11,756
Their bodies caress
and tongues flicker
435
00:33:11,790 --> 00:33:14,359
as the male tastes
the female's pheromones,
436
00:33:14,392 --> 00:33:17,629
testing if she's ready to mate.
437
00:33:17,662 --> 00:33:19,497
When the female is aroused,
438
00:33:19,531 --> 00:33:22,834
she'll lift the base
of her tail, and they'll mate,
439
00:33:22,868 --> 00:33:24,837
like these puff adders
are doing.
440
00:33:29,040 --> 00:33:33,244
The male tends to do
most of the work...
441
00:33:33,278 --> 00:33:36,348
perhaps the females
pace themselves during mating
442
00:33:36,381 --> 00:33:37,849
because just one session
443
00:33:37,883 --> 00:33:41,387
can sometimes carry on
for up to three hours.
444
00:33:44,956 --> 00:33:49,260
females hold all the cards
when it comes to reproduction.
445
00:33:49,294 --> 00:33:52,097
they can store sperm
from one mating session
446
00:33:52,130 --> 00:33:57,636
for up to five years
before it starts to deteriorate.
447
00:33:57,669 --> 00:34:01,273
unlike most snakes,
female puff adders give birth
448
00:34:01,306 --> 00:34:03,441
to live snakelings.
449
00:34:11,016 --> 00:34:12,718
this ensures
that their offspring
450
00:34:12,751 --> 00:34:16,989
get the best possible
chance at life.
451
00:34:17,022 --> 00:34:20,959
within two weeks of birth,
equipped with fangs and venom,
452
00:34:20,992 --> 00:34:22,527
they're fully independent
453
00:34:22,561 --> 00:34:26,432
and perfectly capable
of surviving on their own.
454
00:34:30,669 --> 00:34:33,438
Number 1 on our countdown
of romantic moments
455
00:34:33,471 --> 00:34:37,608
goes to the gifted lover
from down under.
456
00:34:37,642 --> 00:34:39,878
The little red flying fox
of Australia
457
00:34:39,911 --> 00:34:44,115
is a real trapeze artist.
458
00:34:44,149 --> 00:34:46,184
This acrobat uses his talents
459
00:34:46,217 --> 00:34:49,721
even in the most challenging
positions.
460
00:34:49,754 --> 00:34:52,857
Long-clawed thumbs make
ideal clambering hooks
461
00:34:52,891 --> 00:34:55,260
for walking the tightrope.
462
00:34:55,293 --> 00:34:57,128
And a good grip is important
463
00:34:57,162 --> 00:35:00,298
when you're as hyperactive
as the acrobat.
464
00:35:03,368 --> 00:35:06,605
the little red spends
a third of its day grooming
465
00:35:06,638 --> 00:35:09,508
and another large chunk of it
sleeping.
466
00:35:13,945 --> 00:35:17,048
Their curved claws act
as bat coat hangers
467
00:35:17,082 --> 00:35:19,818
and allow them to hang around,
upside down,
468
00:35:19,851 --> 00:35:22,420
without ever falling...
469
00:35:22,454 --> 00:35:25,324
Even when they're taking a nap.
470
00:35:25,357 --> 00:35:28,627
In fact, their feet
can latch on so hard
471
00:35:28,660 --> 00:35:33,031
that even dead bats
remain hanging in place.
472
00:35:33,064 --> 00:35:35,066
When you're always upside down,
473
00:35:35,100 --> 00:35:37,736
you need a trick move
when nature calls.
474
00:35:45,810 --> 00:35:48,846
But this is not the only move
that counts here.
475
00:35:51,249 --> 00:35:55,653
The acrobats compete for females
in upside-down boxing matches.
476
00:35:58,523 --> 00:36:01,393
it's inverted
mixed martial arts.
477
00:36:04,963 --> 00:36:08,567
They claw, box and bite.
478
00:36:13,638 --> 00:36:15,707
The victorious gymnast will mate
479
00:36:15,740 --> 00:36:20,845
with any female
that will have him.
480
00:36:20,879 --> 00:36:23,382
And it's a tricky affair,
481
00:36:23,415 --> 00:36:25,951
even if you're hanging
like a bat.
482
00:36:30,021 --> 00:36:33,958
after a steamy romance
comes the job of parenting,
483
00:36:33,992 --> 00:36:36,328
and a few animals
will risk everything
484
00:36:36,361 --> 00:36:38,496
to protect their young.
485
00:36:38,530 --> 00:36:42,267
Next, more incredible images
as we count down
486
00:36:42,300 --> 00:36:45,904
the greatest moments
of extreme parenting.
487
00:36:47,672 --> 00:36:51,409
For many animals, parenting
can be a full-time job.
488
00:36:51,443 --> 00:36:53,712
Some females go at it solo,
489
00:36:53,745 --> 00:36:57,182
caring for their young
and providing for the family.
490
00:36:57,215 --> 00:36:59,084
Others get help from dad
491
00:36:59,117 --> 00:37:02,320
or other females,
if they're lucky.
492
00:37:02,353 --> 00:37:05,890
up next, we count down
the most remarkable moments
493
00:37:05,924 --> 00:37:08,093
of animal parenting.
494
00:37:12,764 --> 00:37:15,367
it's summer
on the Mississippi river,
495
00:37:15,400 --> 00:37:16,935
and this pair
of feathered lovers
496
00:37:16,968 --> 00:37:20,138
glides in at the top
of our countdown.
497
00:37:20,171 --> 00:37:22,440
Wood ducks that partnered up
in January
498
00:37:22,474 --> 00:37:26,011
now prepare to start a family.
499
00:37:26,044 --> 00:37:27,712
A hole high above the water
500
00:37:27,746 --> 00:37:30,916
will provide relative safety
from predators...
501
00:37:30,949 --> 00:37:33,051
and easy access
to the Mississippi
502
00:37:33,084 --> 00:37:36,955
when the chicks are ready
to take to the water.
503
00:37:36,988 --> 00:37:40,525
by late June...
30 days after they were laid...
504
00:37:40,558 --> 00:37:44,729
A dozen surviving wood ducks
are ready to hatch.
505
00:37:44,763 --> 00:37:49,935
All the chicks are born alert
and with a full coat of down.
506
00:37:49,968 --> 00:37:52,003
They can't fly yet,
507
00:37:52,036 --> 00:37:54,672
but they can't stay
cramped up here either.
508
00:37:56,775 --> 00:37:58,610
After only one day,
509
00:37:58,643 --> 00:38:03,948
mom calls for them to boldly go
where they've never gone before.
510
00:38:03,982 --> 00:38:07,986
It's a 30-foot leap of faith.
511
00:38:08,019 --> 00:38:11,623
the first brave soul
prepares for liftoff.
512
00:38:32,110 --> 00:38:35,814
one down... and its brothers
and sisters wait in the wings.
513
00:39:05,810 --> 00:39:11,449
typically, all the chicks
will jump just minutes apart.
514
00:39:16,788 --> 00:39:19,958
but every now and then,
there's a failure to launch.
515
00:39:42,413 --> 00:39:44,582
After the harrowing departure,
516
00:39:44,616 --> 00:39:48,920
they've landed
in a brave new world.
517
00:39:48,953 --> 00:39:52,657
Only about half the ducklings
will make it to adulthood.
518
00:39:52,690 --> 00:39:57,195
In the meantime, it's up to mom
to teach them all she can.
519
00:40:02,400 --> 00:40:05,570
South of the U.S. border,
off the coast of Mexico,
520
00:40:05,603 --> 00:40:07,905
another mother goes
to extreme lengths
521
00:40:07,939 --> 00:40:11,543
to provide protection
to her newborn calf.
522
00:40:11,576 --> 00:40:14,446
this pacific humpback
takes the number 3 slot
523
00:40:14,479 --> 00:40:19,017
on our countdown
of extreme parenting.
524
00:40:19,050 --> 00:40:22,654
every year these giants
make the 16,000-mile journey
525
00:40:22,687 --> 00:40:24,389
from the cold artic seas
526
00:40:24,422 --> 00:40:28,960
to safer havens
in the tropical pacific.
527
00:40:28,993 --> 00:40:31,062
these islands
off the Baja peninsula
528
00:40:31,095 --> 00:40:32,730
provide an important sanctuary
529
00:40:32,764 --> 00:40:39,604
for whales who come to give
birth in these warm waters.
530
00:40:39,637 --> 00:40:42,773
this mother has chosen
this extraordinary location
531
00:40:42,807 --> 00:40:46,411
to introduce her newborn calf
to the world,
532
00:40:46,444 --> 00:40:48,413
the start of a powerful bond.
533
00:40:52,583 --> 00:40:56,153
for hours at a time,
she remains almost motionless
534
00:40:56,187 --> 00:40:59,590
as her daughter suckles some of
the richest milk of any mammal,
535
00:40:59,624 --> 00:41:02,327
up to 150 gallons a day.
536
00:41:05,596 --> 00:41:08,132
Even though her mother weighs
in the tons,
537
00:41:08,166 --> 00:41:10,702
she demonstrates a tenderness
with her calf
538
00:41:10,735 --> 00:41:13,271
that belies her enormous power.
539
00:41:15,707 --> 00:41:20,145
This youngster is growing
at around 55 pounds a day,
540
00:41:20,178 --> 00:41:24,482
and one of her first important
lessons is controlling buoyancy.
541
00:41:28,219 --> 00:41:31,322
Mother whale makes sitting still
look easy.
542
00:41:31,356 --> 00:41:35,260
But her one-ton baby can't seem
to get the hang of it.
543
00:41:37,962 --> 00:41:40,932
eventually she figures out
that she can use her mother
544
00:41:40,965 --> 00:41:43,034
as a kind of giant anchor,
545
00:41:43,067 --> 00:41:46,971
nestling beneath her until she
needs to surface for air.
546
00:41:55,279 --> 00:41:58,048
for now, being
a baby humpback whale
547
00:41:58,082 --> 00:42:03,721
in the deep blue waters of Baja
seems idyllic.
548
00:42:03,755 --> 00:42:05,290
The lessons she's learning here
549
00:42:05,323 --> 00:42:08,026
could mean the difference
between life and death
550
00:42:08,059 --> 00:42:10,995
when she makes her first
long and dangerous journey
551
00:42:11,029 --> 00:42:13,598
all the way
to the rich feeding grounds
552
00:42:13,631 --> 00:42:15,867
of the frozen arctic circle.
553
00:42:24,375 --> 00:42:27,345
once the grasses
of the serengeti start growing,
554
00:42:27,378 --> 00:42:33,017
an extraordinary tale
of animal daycare unfolds.
555
00:42:33,051 --> 00:42:35,487
it's the onset
of the calving season,
556
00:42:35,520 --> 00:42:37,255
when each heavily pregnant cow
557
00:42:37,288 --> 00:42:39,690
will instinctively drop
its calf,
558
00:42:39,724 --> 00:42:44,195
as many as 8,000 per day.
559
00:42:44,228 --> 00:42:46,297
And it's the following
two to three weeks
560
00:42:46,330 --> 00:42:49,400
that the predators
have been waiting for.
561
00:42:52,670 --> 00:42:54,539
This lioness is hiding
at the center
562
00:42:54,572 --> 00:42:57,341
of literally thousands
of newborn calves.
563
00:43:02,313 --> 00:43:05,316
A mother is forced to leave
her minutes-old offspring.
564
00:43:13,224 --> 00:43:15,359
She makes a brave
and final attempt
565
00:43:15,393 --> 00:43:19,097
to scare off the big cat.
566
00:43:32,810 --> 00:43:36,013
But her calf is now
at another's mercy.
567
00:43:55,399 --> 00:43:59,336
why the lioness hesitates
to make the kill is unknown.
568
00:44:04,475 --> 00:44:07,445
astonishingly,
the calf is imprinting,
569
00:44:07,478 --> 00:44:09,981
compelled to treat
a nearby warm body
570
00:44:10,014 --> 00:44:13,784
as its provider and protector,
571
00:44:13,818 --> 00:44:17,855
a very rare
and usually fatal mistake.
572
00:44:17,889 --> 00:44:20,024
But for some mysterious reason,
573
00:44:20,057 --> 00:44:22,626
the lioness tolerates
the behavior.
574
00:44:36,274 --> 00:44:39,711
attention diverted,
the calf is left alone.
575
00:44:43,414 --> 00:44:47,285
Somewhere in there is a mother
bereft of her calf.
576
00:44:55,626 --> 00:44:58,295
It's believed that mothers
recognize their own calves
577
00:44:58,329 --> 00:44:59,730
by scent.
578
00:44:59,764 --> 00:45:03,468
But successful reunions
like this are rare.
579
00:45:13,477 --> 00:45:15,679
This zebra has just given birth,
580
00:45:15,713 --> 00:45:20,685
and she's the crown winner
in our countdown.
581
00:45:20,718 --> 00:45:24,488
As a new mom, she has
one simple mission:
582
00:45:24,522 --> 00:45:28,526
To keep her seven-week-old foal
alive on his first migration
583
00:45:28,559 --> 00:45:31,529
across the brutal plains
and treacherous rivers
584
00:45:31,562 --> 00:45:34,365
of the masai Mara.
585
00:45:34,398 --> 00:45:36,533
Every year, the search
for food and water
586
00:45:36,567 --> 00:45:39,203
drives 1.5 million wildebeest
587
00:45:39,237 --> 00:45:41,473
and hundreds of thousands
of zebras
588
00:45:41,505 --> 00:45:46,210
on an 1,800-mile journey across
this east African Savannah.
589
00:45:48,246 --> 00:45:51,182
By the time they complete
this great migration,
590
00:45:51,215 --> 00:45:55,920
almost a quarter of the animals
will perish.
591
00:45:55,953 --> 00:46:00,791
For many, the violent Mara river
is the ultimate choke point
592
00:46:00,825 --> 00:46:05,563
and the setting
for nature's deadliest ambush.
593
00:46:05,596 --> 00:46:10,134
Lurking below are the biggest
crocodiles in Africa.
594
00:46:10,167 --> 00:46:15,739
For months they've survived
on little but scraps...
595
00:46:15,773 --> 00:46:17,074
And they are hungry.
596
00:46:23,147 --> 00:46:24,982
Mom and foal take the plunge
597
00:46:25,016 --> 00:46:28,686
and are quickly swept
downstream.
598
00:46:30,154 --> 00:46:31,922
As mom fights the rapids,
599
00:46:31,956 --> 00:46:35,827
there is no way the little foal
can keep up.
600
00:46:35,860 --> 00:46:37,562
The pair is ripped apart,
601
00:46:37,595 --> 00:46:42,600
and the foal disappears
into the chaos.
602
00:46:42,633 --> 00:46:45,102
as more zebras
are washed downstream,
603
00:46:45,136 --> 00:46:47,205
the young foal follows.
604
00:46:51,842 --> 00:46:53,844
After crossing twice midstream,
605
00:46:53,878 --> 00:46:57,782
he finally makes it
to the riverbank.
606
00:46:57,815 --> 00:47:00,885
this time...
There's no turning back.
607
00:47:04,855 --> 00:47:08,192
meanwhile his mother
is fighting her own battle.
608
00:47:08,225 --> 00:47:09,693
She gathers her strength
609
00:47:09,727 --> 00:47:14,632
and readies herself
for a final push.
610
00:47:14,665 --> 00:47:16,867
It's do or die.
611
00:47:24,408 --> 00:47:27,912
her young foal
is not giving up either,
612
00:47:27,945 --> 00:47:30,848
but he's clearly exhausted.
613
00:47:33,484 --> 00:47:35,119
After hours of searching,
614
00:47:35,152 --> 00:47:38,355
mom still has not found
her foal.
615
00:47:38,389 --> 00:47:40,625
Amazingly, she decides to plunge
616
00:47:40,658 --> 00:47:43,461
back into
the crocodile-infested Mara...
617
00:47:43,494 --> 00:47:46,364
perhaps thinking
he's on the other side.
618
00:47:48,999 --> 00:47:52,102
luckily the crocs
are too far downstream...
619
00:47:52,136 --> 00:47:55,773
And mom makes it
to the shallows.
620
00:47:55,806 --> 00:48:00,444
But the young foal is now
on the opposite bank.
621
00:48:00,478 --> 00:48:03,982
it's been more than a day
since he's seen his mother.
622
00:48:04,014 --> 00:48:06,316
without her milk,
he won't last long.
623
00:48:11,055 --> 00:48:14,825
Miraculously mom has survived
a third trip across the river
624
00:48:14,859 --> 00:48:18,329
and is finally back
on the same bank as the foal.
625
00:48:23,734 --> 00:48:27,137
A bite from a crocodile
jolts her into action.
626
00:48:28,906 --> 00:48:33,411
there's no way out
over the pile of carcasses.
627
00:48:33,444 --> 00:48:35,246
The only option is to plunge
628
00:48:35,279 --> 00:48:38,682
back into the blood river
one last time.
629
00:48:48,459 --> 00:48:50,261
Her only hope for survival
630
00:48:50,294 --> 00:48:54,565
is if the crocs
have finally had their fill.
631
00:48:54,598 --> 00:48:58,402
And it seems this time
they have.
632
00:49:05,242 --> 00:49:08,212
thanks to perseverance
and the whims of nature,
633
00:49:08,245 --> 00:49:12,816
mother and foal are alive.
634
00:49:12,850 --> 00:49:16,554
Days of imprinting after birth
have paid off.
635
00:49:16,587 --> 00:49:21,725
And after two days apart,
mother and son reunite.
636
00:49:21,759 --> 00:49:23,294
For the next three months,
637
00:49:23,327 --> 00:49:27,731
they'll join the herds on the
bountiful northern grasslands
638
00:49:27,765 --> 00:49:32,870
until the great migration
leads them south once more.
639
00:49:32,903 --> 00:49:36,807
For this zebra and her foal,
this is life...
640
00:49:36,841 --> 00:49:42,413
tenuous, challenging,
and lived one day at a time.
51046