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Narrator: ANIMALS DO THE MOST
INCREDIBLE THINGS.
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[ BLEATS ]
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00:00:08,620 --> 00:00:11,827
LIKE THIS, AND THIS.
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I BET YOU'RE WONDERING,
"HOW DO THEY DO THAT?"
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00:00:15,448 --> 00:00:18,862
WE'RE REVEALING ANIMALS'
BIGGEST SECRETS,
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LIKE WHAT'S THE STORY
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BEHIND THE ANTEATER'S TONGUE?
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WHY DO DUNG BEETLES PLAY SOCCER
WITH POOP,
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AND WHY DON'T HAIRY HOUNDS
IN HOT WEATHER GET HEAT STROKE?
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THESE WONDERS AND MORE ON
"HOW DO ANIMALS DO THAT?"
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00:00:39,310 --> 00:00:43,448
--Captions by VITAC--
www.vitac.com
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ANTEATER.
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SOUNDS MORE LIKE AN OCCUPATION
THAN AN ANIMAL.
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BUS DRIVER, WINDOW WASHER,
FIREFIGHTER, ANTEATER.
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00:00:52,137 --> 00:00:54,172
SEE?
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00:00:54,172 --> 00:00:55,724
AND LIKE OCCUPATIONS,
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00:00:55,724 --> 00:00:58,655
THE ANTEATER WORKS HARD
FOR ITS SUPPER.
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00:00:58,655 --> 00:01:02,896
WHAT'S WORSE,
ITS SUPPER BITES BACK.
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THIS POOR ANTEATER HAS AN ARMY
OF ANGRY ANTS
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STINGING HIS SNOUT,
AND ANTS AREN'T EXACTLY FILLING.
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AN ANTEATER MUST EAT AS MANY
AS 35,000 A DAY TO SURVIVE.
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THAT'S NEARLY HALF
A POUND OF ANTS.
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ACROSS CENTRAL
AND SOUTH AMERICA,
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FOUR SPECIES OF ANTEATERS
ARE ON THE HUNT FOR ANTS.
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FROM THE CAT-SIZED PYGMY
ANTEATER TO THE GIANT ANTEATER,
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7 FOOT LONG FROM NOSE TO TAIL.
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ALL OF THEM HAVE
THE SAME PAINFUL MEALTIMES.
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♪♪
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AN ANTEATER CAN ONLY BEAR
THE PAIN
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FROM ALL THE ANTS' VENOMOUS
BITES FOR AROUND A MINUTE,
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IN WHICH TIME THEY HAVE
TO GOBBLE AS MANY BUGS
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AS THEY POSSIBLY CAN,
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SO HOW DO THEY DO IT?
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TO FIND OUT,
WE'VE COME TO CINCINNATI ZOO
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TO VISIT THEIR HEAD
OF INSECT CHOMPING.
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AH, THERE YOU ARE.
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THIS IS ISLA,
A TAMANDUA ANTEATER.
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HER KEEPER, COLLEEN ADAMS,
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IS CHARGED WITH FEEDING
HER INSATIABLE APPETITE.
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ISLA IS A GREAT AMBASSADOR
FOR HER SPECIES.
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Narrator:
THE FIRST SECRET OF SPEED-EATING
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IS A SUPER LONG TONGUE.
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NOT WISHING TO BE RUDE,
BUT ISLA HAS A VERY BIG NOSE,
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OR RATHER, SNOUT,
BUT HER TONGUE IS EVEN LONGER.
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AN INCREDIBLE 16 INCHES LONG!
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IT ALLOWS THEM TO STICK
THAT TONGUE REALLY DEEP
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INTO TERMITE MOUNDS
AND ANTHILLS,
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AND SOMETIMES EVEN BURROWS
OF OTHER INSECTS
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THAT THEY MIGHT FIND
TO BE PRETTY TASTY.
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Narrator:
THIS SUPER-SIZED TONGUE
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IS ONE OF THE MOST
ELABORATE IN THE ANIMAL WORLD.
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IT CAN FEEL ITS WAY AROUND
THE INSIDE OF TERMITE MOUNDS,
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AND COLLECT HUNDREDS OF SNACKS
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IN ONE GO
WITHOUT SEEING A SINGLE ONE.
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TO DEMONSTRATE HOW,
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COLLEEN'S DISHING UP
ONE OF ISLA'S FAVORITE DELIGHTS.
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IN THIS CONTAINER,
I HAVE ROUGHLY 250 CRICKETS.
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WE'RE GONNA SEE JUST HOW LONG
IT TAKES ISLA TO EAT ALL 250.
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ALL RIGHT, ISLA.
WE'RE READY FOR YOU.
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Narrator:
READY...SET...EAT!
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♪♪
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WOW! LOOK AT HER GO.
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ISLA'S TONGUE FLICKS OUT
THREE TIMES A SECOND,
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OR 160 TIMES PER MINUTE!
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AND THERE'S A SECRET TO HOW
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SHE CAN REEL IN MULTIPLE
INSECTS WITH EACH LICK.
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THE TONGUE'S SURFACE
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HAS THOUSANDS OF
MICROSCOPIC V-SHAPED HOOKS
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THAT CAPTURE ANY INSECT
THEY SWIPE ACROSS,
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AND IT'S ALSO COVERED
IN A SUPER STICKY SALIVA.
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AGAINST ISLA'S DUAL-ACTION
HOOKY-STICKY-WHIPLASH TONGUE,
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THOSE TASTY CRICKETS
DON'T STAND A CHANCE.
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Adams: IT'S REALLY IMPORTANT
THAT THEY ARE ABLE TO USE
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THEIR TONGUES VERY EFFICIENTLY
AND EFFECTIVELY TO LAP UP
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ALL THE INSECTS
THAT THEY NEED TO EAT IN A DAY.
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Narrator: AND SO AS NOT TO MISS
A SINGLE ONE,
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SHE MOVES HER TONGUE LEFT
AND RIGHT,
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WIPING ACROSS
THE SURFACE OF THE TUBE,
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TAKING IN EVERY BUG.
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♪♪
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ANOTHER REASON ANTEATERS ARE
SUCH FAST EATERS
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IS THAT THEY DON'T STOP
TO CHEW THEIR FOOD,
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AND THAT'S BECAUSE
THEY CAN'T CHEW.
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THEY ACTUALLY
DON'T HAVE ANY TEETH.
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Narrator:
BUT IF THEY DON'T CHEW,
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HOW DO THEY MASH CRUNCHY BUGS
INTO A DIGESTIBLE FORM?
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AS WELL AS BUGS, ISLA AND HER
CHUMS LOVE TO EAT STONES,
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WHICH ACT A BIT LIKE TEETH.
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AS THE MANY THOUSANDS OF ANTS
DESCEND INTO HER STOMACH,
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POWERFUL TUMMY MUSCLES
SET TO WORK,
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00:05:04,241 --> 00:05:06,931
AND THE ROLLING STONES
GRIND THE GRUBS
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00:05:06,931 --> 00:05:10,482
INTO A DELICIOUS
AND NUTRITIOUS CRICKET-Y PASTE,
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00:05:10,482 --> 00:05:15,034
AND ISLA, THE FAST FOOD JUNKIE,
HAS POLISHED OFF 250 CRICKETS
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IN AN EFFORTLESS 30 SECONDS.
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Adams:
ISLA, IF I ATE THAT FAST,
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00:05:18,862 --> 00:05:22,172
I'D HAVE SOME
SERIOUS INDIGESTION.
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Narrator:
BETTER GET THE ANT-ACIDS.
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OH, DEAR. I'M HERE ALL WEEK.
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[ BUZZING ]
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[ WAILING ]
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IT'S ONE OF THE MOST MOVING,
BEAUTIFUL SOUNDS ON THE PLANET.
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EERIE, ALMOST ALIEN.
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THIS IS THE SONG OF A SINGLE
HUMPBACK WHALE.
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THIS HAUNTING MELODY CAN BE
HEARD BY OTHER HUMPBACK WHALES
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POTENTIALLY UP TO 1,600 MILES
ACROSS THE OCEAN,
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BUT THE STRANGE THING IS,
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WHALES DON'T EVEN OPEN
THEIR MOUTHS TO MAKE A SOUND.
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SO...
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[ WAILING ]
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IT SOUNDS SWEET AND GENTLE
ON YOUR TV,
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BUT UP CLOSE IN THE WATER,
THE SONG OF A 50-FOOT HUMPBACK
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IS LOUD ENOUGH
TO BURST YOUR EARDRUMS.
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♪♪
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AT 175 DECIBELS,
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IT'S ONE OF THE LOUDEST
SOUNDS ON PLANET EARTH,
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AND YOU THOUGHT
YOU HAD NOISY NEIGHBORS.
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[ GROANING ]
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A MALE HUMPBACK CAN KEEP SINGING
FOR SEVERAL DAYS,
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BUT THE WEIRD THING IS,
HE HAS NO VOCAL CHORDS.
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00:06:42,517 --> 00:06:44,241
♪♪
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STRANGER STILL, HE DOESN'T
START SINGING
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UNTIL HE'S 90 FEET
BELOW THE SURFACE
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AND STANDING ON HIS HEAD.
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♪♪
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SCIENTISTS BELIEVE
THIS COULD BE
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BECAUSE WHALES SING NOT
WITH THEIR MOUTHS,
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BUT WITH THEIR THROATS.
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AS THE WHALE'S CHEST
AND THROAT MUSCLES CONTRACT,
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00:07:11,310 --> 00:07:13,551
AIR IS CIRCULATED BACK
AND FORTH
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00:07:13,551 --> 00:07:17,344
BETWEEN THE LUNGS
AND A SYSTEM OF AIRBAGS.
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ALONG THE WAY, IT PASSES
A THICK RIDGE OF TISSUE
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CALLED THE U-FOLD,
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00:07:21,965 --> 00:07:26,241
WHICH VIBRATES
AND MAKES THE HAUNTING SOUND,
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00:07:26,241 --> 00:07:29,413
THEN THE SOUND IS AMPLIFIED
IN THE WHALE'S THROAT
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00:07:29,413 --> 00:07:34,586
AND ESCAPES THROUGH
ITS ACCORDION-LIKE NECK PLEATS.
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00:07:34,586 --> 00:07:38,931
THE REASON THEY TURN UPSIDE
DOWN TO SING IS STILL UNKNOWN,
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00:07:38,931 --> 00:07:42,172
BUT IT COULD BE THAT
BY FACING THEIR THROAT SEAWARDS
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RATHER THAN AT THE FLOOR,
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THEY ARE DIRECTING THEIR SONG
OUT INTO THE OCEAN,
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ALLOWING THIS BRINY BALLAD
TO REACH AS FAR AS POSSIBLE.
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♪♪
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00:07:56,655 --> 00:07:59,413
BUT WHY DO THEY SING AT ALL?
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THIS QUESTION HAS BAMBOOZLED
SCIENTISTS FOR DECADES,
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00:08:03,172 --> 00:08:06,655
BUT NOW THEY'VE DISCOVERED
AN IMPORTANT CLUE.
145
00:08:06,655 --> 00:08:09,896
BECAUSE THE MALES MOSTLY
SING DURING BREEDING SEASON,
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THESE COULD BE LOVE SONGS.
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THIS LITTLE NUMBER IS CALLED
"WHALE YOU BE MINE?"
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[ WAILING ]
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00:08:22,068 --> 00:08:23,862
[ HOOTING ]
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00:08:23,862 --> 00:08:25,827
COMING UP, BUILT-IN
AIR-CONDITIONING
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FOR COOL CANINES,
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AMAZING DAM-BUILDING BEAVERS,
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AND POOP-MUNCHING BEETLES
WHO PLAY WITH THEIR FOOD.
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♪♪
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♪♪
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00:08:44,896 --> 00:08:47,758
Narrator: IT'S A STEAMING-HOT
SUMMER'S DAY,
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00:08:47,758 --> 00:08:50,931
AND DESPITE THE FACT THAT THESE
DOGS ARE WEARING SUPER WARM,
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FULL-LENGTH,
SKINTIGHT FUR COATS,
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00:08:54,068 --> 00:08:59,965
ALL THEY WANT TO DO IS RUN
AND RUN AND RUN AND JUMP.
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00:08:59,965 --> 00:09:02,896
IF YOU AND I DID THAT,
WE'D DIE OF HEAT STROKE,
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00:09:02,896 --> 00:09:06,379
BUT THIS COOL CANINE
DOESN'T EVEN BREAK A SWEAT.
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00:09:12,275 --> 00:09:15,275
TO ANSWER THAT QUESTION,
WE'RE IN NEW MEXICO
163
00:09:15,275 --> 00:09:19,517
TO MEET THE ANCESTOR
OF ALL MODERN DOGS, THE WOLF.
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00:09:19,517 --> 00:09:22,620
THIS ONE'S NAMED QUINN.
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EVEN AFTER THOUSANDS OF YEARS
OF DOMESTICATION...
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00:09:25,206 --> 00:09:26,655
[ BARKS ]
167
00:09:26,655 --> 00:09:30,724
YOUR PET DOG AND THIS WOLF STILL
BELONG TO THE SAME SPECIES,
168
00:09:30,724 --> 00:09:33,551
AND THEY STAY COOL
IN EXACTLY THE SAME WAY.
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00:09:33,551 --> 00:09:36,758
♪♪
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00:09:36,758 --> 00:09:40,137
IT'S A WARM DAY, AND WOLF EXPERT
LEYTON COUGAR
171
00:09:40,137 --> 00:09:43,448
HAS BEEN EXERCISING
QUINN FOR AN HOUR.
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00:09:43,448 --> 00:09:47,482
I AM SWEATING, BUT POOR QUINN,
HE CAN'T TAKE HIS JACKET OFF.
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00:09:47,482 --> 00:09:50,413
♪♪
174
00:09:50,413 --> 00:09:52,586
Narrator: WITH US,
SWEAT DROPLETS EFFECTIVELY
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00:09:52,586 --> 00:09:55,482
TRANSMIT HEAT
AWAY FROM THE BODY.
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00:09:55,482 --> 00:10:00,068
IT'S NOT GLAMOROUS,
BUT IT WORKS.
177
00:10:00,068 --> 00:10:03,310
BUT UNDER HIS FUR COAT,
POOR QUINN CAN'T SWEAT.
178
00:10:03,310 --> 00:10:06,172
INSTEAD, AS WE ALL KNOW,
HE PANTS,
179
00:10:06,172 --> 00:10:09,206
BUT THIS IS MORE THAN
JUST CATCHING HIS BREATH.
180
00:10:09,206 --> 00:10:12,275
AS HE'S BREATHING IN AND OUT,
181
00:10:12,275 --> 00:10:14,689
COOL AIR
IS PASSING OVER HIS TONGUE,
182
00:10:14,689 --> 00:10:19,206
AND THAT HELPS TO
VERY RAPIDLY COOL HIM DOWN.
183
00:10:19,206 --> 00:10:21,034
Narrator:
A DOG'S TONGUE TURNS INTO A BIG,
184
00:10:21,034 --> 00:10:22,896
WET AIR-CONDITIONER,
185
00:10:22,896 --> 00:10:27,793
RADIATING HEAT
AWAY FROM THE BODY.
186
00:10:27,793 --> 00:10:30,620
THIS TONGUE RIGHT HERE SOMETIMES
WILL JUST HANG ALL THE WAY
187
00:10:30,620 --> 00:10:33,413
DOWN PAST HIS CHIN,
WILL GET REALLY WIDE,
188
00:10:33,413 --> 00:10:36,310
AND LOOK KIND OF LIKE A SPOON.
189
00:10:36,310 --> 00:10:38,379
Narrator: AFTER EXERCISE,
A DOG'S TONGUE
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00:10:38,379 --> 00:10:42,931
CAN SWELL TO AN EXTRAORDINARY
SIX TIMES ITS NORMAL SIZE.
191
00:10:42,931 --> 00:10:45,827
WHOA, MAYBE MORE WITH THIS GUY.
192
00:10:45,827 --> 00:10:49,310
AS BLOOD PASSES THROUGH THE TENS
OF THOUSANDS OF BLOOD VESSELS
193
00:10:49,310 --> 00:10:53,689
IN A DOG'S DANGLING TONGUE,
IT RAPIDLY COOLS,
194
00:10:53,689 --> 00:10:57,482
AND WHAT HELPS IT COOL
IS ALL THIS SLOPPY SALIVA,
195
00:10:57,482 --> 00:11:01,034
EVAPORATING THE HEAT AWAY
DURING PANTING.
196
00:11:01,034 --> 00:11:04,586
HE'LL BE INHALING
AND EXHALING VERY RAPIDLY,
197
00:11:04,586 --> 00:11:08,482
AND THAT HELPS COOL
DOWN HIS ENTIRE BODY.
198
00:11:08,482 --> 00:11:11,172
Narrator: QUINN IS NOW TAKING UP
TO 300 BREATHS A MINUTE
199
00:11:11,172 --> 00:11:14,310
INSTEAD OF HIS USUAL 30.
200
00:11:14,310 --> 00:11:16,965
IT'S LIKE TURNING YOUR
AIR-CONDITIONER TO SUPER COOL.
201
00:11:16,965 --> 00:11:20,862
♪♪
202
00:11:20,862 --> 00:11:24,000
BUT THAT'S NOT TO SAY DOGS
NEVER SWEAT.
203
00:11:24,000 --> 00:11:26,620
DOGS DO SWEAT IN ONE PLACE,
204
00:11:26,620 --> 00:11:29,931
AND THAT'S THE BOTTOM
OF THEIR PADS.
205
00:11:29,931 --> 00:11:32,862
THEY DON'T SWEAT FROM ACTIVITY.
206
00:11:32,862 --> 00:11:37,034
THEY SWEAT BECAUSE
THEY'RE STRESSED.
207
00:11:37,034 --> 00:11:38,896
Narrator:
IF YOU'RE A WOLF OR A DOG,
208
00:11:38,896 --> 00:11:43,000
SWEATY PAWS IN A STRESSFUL,
TIGHT SPOT ARE JUST THE THING.
209
00:11:43,000 --> 00:11:45,206
THE MOISTURE ADDS THE STICKY
GRIP YOU NEED
210
00:11:45,206 --> 00:11:48,482
FOR A QUICK GETAWAY.
211
00:11:48,482 --> 00:11:51,517
SO WHEN IT COMES TO STAYING
SAFE AND COOL,
212
00:11:51,517 --> 00:11:55,896
OUR BONE-LOVING BEST FRIENDS,
WOLF OR DOG, HAVE GOT IT LICKED.
213
00:11:55,896 --> 00:12:00,655
[ KISSING ]
214
00:12:00,655 --> 00:12:03,344
[ CHIRPING ]
215
00:12:03,344 --> 00:12:07,827
Narrator:
COMING UP, IRON-TOOTHED BEAVERS
216
00:12:07,827 --> 00:12:11,103
AND BODY-BUILDING BEETLES.
217
00:12:11,103 --> 00:12:14,000
♪♪
218
00:12:17,931 --> 00:12:21,379
♪♪
219
00:12:21,379 --> 00:12:23,586
Narrator:
SOME OF THE OLDEST AND LARGEST
220
00:12:23,586 --> 00:12:28,689
STRUCTURES IN NORTH AMERICA
WEREN'T BUILT BY MAN.
221
00:12:28,689 --> 00:12:32,620
THEY WERE BUILT BY
THIS FURRY LITTLE FELLA.
222
00:12:32,620 --> 00:12:37,137
BEAVER DAMS ARE TRULY
ONE OF NATURE'S WONDERS.
223
00:12:37,137 --> 00:12:42,310
CARBON DATING HAS REVEALED
SOME TO BE 1,000 YEARS OLD,
224
00:12:42,310 --> 00:12:44,482
AND SATELLITE IMAGERY
HAS SPOTTED OTHERS
225
00:12:44,482 --> 00:12:47,827
NEARLY HALF A MILE WIDE.
226
00:12:47,827 --> 00:12:50,241
THESE LITTLE CRITTERS
MUST HAVE A VERY GOOD REASON
227
00:12:50,241 --> 00:12:52,551
FOR BUILDING THEM.
228
00:12:52,551 --> 00:12:54,827
WELL, DON'T THEY?
229
00:13:01,000 --> 00:13:05,206
IN THE FORESTS OF NORTHERN
MINNESOTA, DR. GREGORY BAMBENEK
230
00:13:05,206 --> 00:13:08,931
IS HOPING TO FIND A NEW FAMILY
OF BEAVERS TO STUDY,
231
00:13:08,931 --> 00:13:11,862
SO HE'S TAKING TO THE AIR.
232
00:13:11,862 --> 00:13:14,137
Bambenek: OKAY, WE'RE UP OVER
THE TREE LINE.
233
00:13:14,137 --> 00:13:16,793
I CAN SEE THE FLOODED
AREA THERE.
234
00:13:16,793 --> 00:13:18,103
Narrator: A HALF A MILE EAST,
235
00:13:18,103 --> 00:13:20,517
HE SPOTS
WHAT HE'S BEEN LOOKING FOR.
236
00:13:20,517 --> 00:13:23,793
Bambenek: THERE'S THE DAM.
237
00:13:23,793 --> 00:13:25,206
Narrator:
FOR THE LAST 10 YEARS,
238
00:13:25,206 --> 00:13:27,034
DR. BAMBENEK
HAS DEVOTED HIS LIFE
239
00:13:27,034 --> 00:13:28,655
TO UNLOCKING THE SECRETS
OF THESE
240
00:13:28,655 --> 00:13:33,793
INCREDIBLY CLEVER
AND TALENTED RODENTS.
241
00:13:33,793 --> 00:13:37,827
THEIR TEETH ARE SPECIALIZED.
THEY GROW VERY FAST.
242
00:13:37,827 --> 00:13:42,172
Narrator: TEETH ARE KEY TO
THE BEAVER'S SUPERPOWER.
243
00:13:42,172 --> 00:13:44,586
ADULTS CAN CHEW THROUGH
A FIVE-INCH TREE TRUNK
244
00:13:44,586 --> 00:13:46,724
IN UNDER THREE MINUTES.
245
00:13:46,724 --> 00:13:48,724
Bambenek: YOU CAN SEE THE TEETH
IN THE FRONT ARE ORANGE.
246
00:13:48,724 --> 00:13:52,241
THAT'S FROM DEPOSITS OF IRON.
247
00:13:52,241 --> 00:13:54,000
Narrator: THE ENAMEL ON
THE FRONT OF THEIR TEETH
248
00:13:54,000 --> 00:13:57,206
IS LACED WITH IRON
TAKEN FROM THEIR BLOOD,
249
00:13:57,206 --> 00:13:59,517
AND THAT MEANS
AS THE BEAVER GNAWS,
250
00:13:59,517 --> 00:14:02,758
THE BACK WEARS DOWN
FASTER THAN THE FRONT.
251
00:14:02,758 --> 00:14:06,862
INCREDIBLY, THIS CREATES
AN ANGLED CHISEL-LIKE EDGE
252
00:14:06,862 --> 00:14:10,827
THAT SELF-SHARPENS
WITH EVERY BITE,
253
00:14:10,827 --> 00:14:12,758
AND THESE RAZOR-SHARP TEETH,
254
00:14:12,758 --> 00:14:15,206
COMBINED WITH
THEIR RAZOR-SHARP BRAIN,
255
00:14:15,206 --> 00:14:18,689
CAN CONSTRUCT A DAM LIKE THIS,
256
00:14:18,689 --> 00:14:22,103
AND DR. BAMBENEK HAS FOUND
THE CHAP WHO PROBABLY BUILT IT.
257
00:14:22,103 --> 00:14:24,551
THIS LITTLE GUY HAS FELLED
ABOUT 80 TREES,
258
00:14:24,551 --> 00:14:27,758
MOVED HUNDREDS OF STONES,
AND MOLDED THEM TOGETHER
259
00:14:27,758 --> 00:14:30,862
WITH ABOUT A TON OF MUD,
260
00:14:30,862 --> 00:14:34,517
AND THE REASON
FOR ALL THIS EFFORT?
261
00:14:34,517 --> 00:14:39,000
INITIALLY, DAM BUILDING
IS OUT OF LOVE.
262
00:14:39,000 --> 00:14:43,068
Narrator: YES, THE BOYS BUILD
DAMS TO ATTRACT GIRLS.
263
00:14:43,068 --> 00:14:45,482
IF THEY BUILD A GOOD DAM,
THE FEMALE COMES AROUND,
264
00:14:45,482 --> 00:14:47,724
AND THEN THEY CREATE
A NEW FAMILY.
265
00:14:47,724 --> 00:14:49,344
Narrator: MRS. BEAVER IS NOT
THE KIND OF GIRL
266
00:14:49,344 --> 00:14:52,034
WHO GOES FOR LOOKS OR MONEY.
267
00:14:52,034 --> 00:14:53,310
NO, NO.
268
00:14:53,310 --> 00:14:54,517
SHE WANTS TO SHARE THE REST
OF HER LIFE
269
00:14:54,517 --> 00:14:56,655
WITH A GUY WHO CAN
GIVE HER SECURITY
270
00:14:56,655 --> 00:14:58,551
AND A HOME OF HER DREAMS.
271
00:14:58,551 --> 00:15:02,862
IN SHORT, A BRILLIANT
STRUCTURAL ENGINEER.
272
00:15:02,862 --> 00:15:06,655
SHE'S PLANNING ON GETTING HIM
TO HELP HER BUILD THEIR LODGE,
273
00:15:06,655 --> 00:15:10,689
SO WHY DOES SHE INSIST ON HIM
MAKING A BIG DAM FIRST?
274
00:15:10,689 --> 00:15:14,689
WELL, TO FIND OUT, AGAIN,
WE NEED AN AERIAL VIEW.
275
00:15:14,689 --> 00:15:16,517
Bambenek: OH, THERE'S A LUMP
IN THE MIDDLE.
276
00:15:16,517 --> 00:15:18,344
THAT'S THEIR LODGE.
277
00:15:18,344 --> 00:15:20,793
Narrator: FROM UP HERE,
IT BECOMES CLEAR.
278
00:15:20,793 --> 00:15:24,758
ANIMALS THAT EAT BEAVERS
AREN'T GOOD UNDERWATER SWIMMERS,
279
00:15:24,758 --> 00:15:28,448
SO SHE WANTS A NICE FAMILY HOUSE
SURROUNDED BY WATER,
280
00:15:28,448 --> 00:15:31,310
LIKE A CASTLE WITH A MOAT,
281
00:15:31,310 --> 00:15:32,862
AND TO KEEP THE MOAT FILLED,
282
00:15:32,862 --> 00:15:37,448
SHE NEEDS A DAM.
283
00:15:37,448 --> 00:15:38,620
Bambenek:
THEY CAN AVOID THE PREDATORS.
284
00:15:38,620 --> 00:15:40,413
WOLVES ARE LOOKING
AROUND FOR THEM.
285
00:15:40,413 --> 00:15:42,758
THEY JUST DIVE IN,
AND NOTHING CAN GET IN THERE.
286
00:15:42,758 --> 00:15:46,586
♪♪
287
00:15:46,586 --> 00:15:48,068
Narrator:
TO CONSTRUCT THEIR FORTRESS,
288
00:15:48,068 --> 00:15:49,586
MR. AND MRS. BEAVER,
289
00:15:49,586 --> 00:15:52,655
OVER A COUPLE OF DAYS,
BUILD A 20-FOOT WIDE,
290
00:15:52,655 --> 00:15:56,000
THREE TON MUD
AND STICK MOUNTAIN.
291
00:15:56,000 --> 00:15:57,931
NOW THE OUTSIDE IS SOLID,
292
00:15:57,931 --> 00:16:00,965
BUT BEAVERS ARE ALSO SKILLED
INTERIOR DESIGNERS.
293
00:16:00,965 --> 00:16:04,482
♪♪
294
00:16:04,482 --> 00:16:06,241
SWIMMING BELOW THE WATERLINE,
295
00:16:06,241 --> 00:16:09,551
THE BEAVERS CHEW A TUNNEL
INTO THE MOUND.
296
00:16:09,551 --> 00:16:13,344
ONCE INSIDE, THEY CHEW OUT
AN EIGHT-FOOT WIDE CHAMBER
297
00:16:13,344 --> 00:16:15,172
JUST ABOVE THE WATERLINE.
298
00:16:15,172 --> 00:16:17,068
THIS IS WHERE THEY SLEEP.
299
00:16:17,068 --> 00:16:22,206
THEN A NURSERY IS CHEWED OUT
TO COMPLETE THE LODGE.
300
00:16:22,206 --> 00:16:26,310
INSIDE THEIR CASTLE, THE FAMILY
IS SAFE UNTIL IT'S TIME
301
00:16:26,310 --> 00:16:30,344
FOR THE KIDS TO MOVE ON
AND START THEIR OWN FAMILY.
302
00:16:30,344 --> 00:16:31,379
Bambenek: AT 2 YEARS OF AGE,
303
00:16:31,379 --> 00:16:32,862
THEY GET
KICKED OUT OF THE LODGE.
304
00:16:32,862 --> 00:16:35,172
THEY GOT TO FIND
THEIR OWN PLACE.
305
00:16:35,172 --> 00:16:37,172
THEY GO UPSTREAM, USUALLY.
306
00:16:37,172 --> 00:16:39,517
THEY HAVE TO BUILD A NEW DAM
AND NEW LODGE,
307
00:16:39,517 --> 00:16:44,551
AND SO SUCCESSIVE FAMILIES
HAVE SUCCESSIVE LODGES AND DAMS
308
00:16:44,551 --> 00:16:46,068
ALL THE WAY UP A RIVER,
309
00:16:46,068 --> 00:16:50,827
AND YOU CAN SEE THAT
ON SOME AERIAL VIEWS.
310
00:16:50,827 --> 00:16:52,206
Narrator: APART FROM US,
311
00:16:52,206 --> 00:16:54,241
BEAVERS TRANSFORM
THE FACE OF OUR PLANET
312
00:16:54,241 --> 00:16:57,448
MORE THAN ANY OTHER ANIMAL,
313
00:16:57,448 --> 00:17:00,896
SO WHY DOES AN EAGER
BEAVER BUILD A DAM?
314
00:17:00,896 --> 00:17:02,965
TO GET HIS GIRL.
315
00:17:02,965 --> 00:17:07,931
♪♪
316
00:17:07,931 --> 00:17:10,344
COMING UP, BRAINY BEETLES WITH
317
00:17:10,344 --> 00:17:12,724
A STRANGE TAKE ON
A TASTY BRUNCH.
318
00:17:12,724 --> 00:17:15,655
♪♪
319
00:17:19,517 --> 00:17:22,827
♪♪
320
00:17:22,827 --> 00:17:25,448
Narrator: WHEN YOU SEE STEAMING
STINKY POOP,
321
00:17:25,448 --> 00:17:27,689
WHAT'S THE FIRST THING
YOU THINK?
322
00:17:27,689 --> 00:17:29,793
PROBABLY NOT, "LUNCH."
323
00:17:29,793 --> 00:17:32,000
FOR ONE ANIMAL, A TITANIC TURD
324
00:17:32,000 --> 00:17:36,310
IS A SMORGASBORD
NOT TO BE IGNORED,
325
00:17:36,310 --> 00:17:39,103
BUT INSTEAD OF MUNCHING
HIS LUNCH WHERE HE FINDS IT,
326
00:17:39,103 --> 00:17:43,275
THIS LITTLE FELLA SEEMS TO
LIKE PLAYING WITH HIS FOOD.
327
00:17:51,275 --> 00:17:54,310
THERE ARE MORE THAN
8,000 SPECIES OF DUNG BEETLE,
328
00:17:54,310 --> 00:17:59,103
AND THEY ARE FOUND ON EVERY
CONTINENT EXCEPT ANTARCTICA.
329
00:17:59,103 --> 00:18:02,275
PRETTY, BUT NOT ENOUGH
WARM POOP TO GO AROUND.
330
00:18:02,275 --> 00:18:06,586
♪♪
331
00:18:06,586 --> 00:18:09,413
DUNG BEETLES LOVE THE MOIST,
AROMATIC OFFERINGS
332
00:18:09,413 --> 00:18:12,379
OF HERBIVORES, WHICH ARE PACKED
WITH PRE-MUNCHED,
333
00:18:12,379 --> 00:18:16,103
SEMI-DIGESTED
LEFTOVER PLANT MATTER.
334
00:18:16,103 --> 00:18:18,379
IT'S LIKE PIPING HOT
VEGGIE BURGERS
335
00:18:18,379 --> 00:18:21,758
STRAIGHT OUT
OF SOMEONE ELSE'S OVEN.
336
00:18:21,758 --> 00:18:25,413
WITH AN ELEPHANT PRODUCING
OVER 300 POUNDS OF POO A DAY,
337
00:18:25,413 --> 00:18:30,620
THAT'S QUITE A FEAST,
338
00:18:30,620 --> 00:18:35,137
BUT WITH UP TO 4,000 BEETLES
WANTING A SLICE OF POOEY PIE,
339
00:18:35,137 --> 00:18:37,724
COMPETITION
BETWEEN THEM IS FIERCE,
340
00:18:37,724 --> 00:18:41,241
SO THIS LITTLE CHAP WANTS
TO TURN TURDS INTO TAKEOUT.
341
00:18:41,241 --> 00:18:43,724
♪♪
342
00:18:43,724 --> 00:18:45,344
FIRST, HE MUST PRESS TOGETHER
343
00:18:45,344 --> 00:18:49,241
THE POO
INTO A STINKY LITTLE SPHERE,
344
00:18:49,241 --> 00:18:53,000
AND WHEN IT'S READY, THIS BUG
REALLY GETS THE BALL ROLLING,
345
00:18:53,000 --> 00:18:56,206
BUT HE HAS
A VERY PECULIAR TECHNIQUE.
346
00:18:56,206 --> 00:18:58,758
HE DOES THE INSECT EQUIVALENT
OF A HANDSTAND,
347
00:18:58,758 --> 00:19:04,206
AND PUSHES THE BALL BACKWARDS,
BUT HE HAS A SECRET.
348
00:19:04,206 --> 00:19:07,551
TINY SPURS ON HIS BACK LEGS
DIG INTO THE BALL,
349
00:19:07,551 --> 00:19:11,275
WHILE POWERFUL FRONT LEGS DRIVE
IT AWAY FROM THE DUNG PILE.
350
00:19:11,275 --> 00:19:15,793
♪♪
351
00:19:15,793 --> 00:19:18,793
MAKING A GETAWAY BACKWARDS,
WHILE PUSHING A POO BALL
352
00:19:18,793 --> 00:19:22,448
FOUR TIMES BIGGER THAN YOUR BODY
AND DOING A HANDSTAND,
353
00:19:22,448 --> 00:19:25,827
IS HARD WORK FOR ANYONE,
354
00:19:25,827 --> 00:19:28,000
BUT BY FACING BACKWARDS
355
00:19:28,000 --> 00:19:30,275
AND NOT BEING ABLE TO SEE
WHERE HE'S GOING,
356
00:19:30,275 --> 00:19:33,413
OUR BEETLE RISKS
PUSHING HIS BALL IN A CIRCLE,
357
00:19:33,413 --> 00:19:36,379
RIGHT BACK TO WHERE HE STARTED.
358
00:19:36,379 --> 00:19:39,034
YEAH, BAD MOVE.
359
00:19:39,034 --> 00:19:42,551
SO HOW DOES HE PUSH IT
IN A STRAIGHT LINE?
360
00:19:42,551 --> 00:19:44,827
FIRST, HE STANDS ON TOP
OF HIS BALL
361
00:19:44,827 --> 00:19:47,689
AND DOES WHAT'S KNOWN
AS A "DUNG DANCE."
362
00:19:47,689 --> 00:19:52,000
♪♪
363
00:19:52,000 --> 00:19:54,448
THIS STRANGE JIG IS THE BEETLE
364
00:19:54,448 --> 00:19:58,448
LOOKING FOR A LIGHT SOURCE
IN THE SKY.
365
00:19:58,448 --> 00:20:01,551
ONCE HE'S FOUND THE MILKY WAY,
OR IF IT'S DAYTIME,
366
00:20:01,551 --> 00:20:06,517
THE SUN, HE TAKES
A SERIES OF MENTAL SNAPSHOTS,
367
00:20:06,517 --> 00:20:07,931
THEN OFF HE GOES AGAIN.
368
00:20:07,931 --> 00:20:09,275
CHECKING THE LIGHT SOURCE
369
00:20:09,275 --> 00:20:13,275
IS ALWAYS IN THE SAME
POSITION RELATIVE TO HIM.
370
00:20:13,275 --> 00:20:15,655
IF HE STICKS TO THIS,
HE'LL MAINTAIN A COURSE
371
00:20:15,655 --> 00:20:20,275
DIRECTLY AWAY
FROM THE POOP PILE.
372
00:20:20,275 --> 00:20:22,241
ALL OF THIS FROM A BEETLE
WITH A BRAIN
373
00:20:22,241 --> 00:20:25,310
THE SIZE OF A GRAIN OF RICE.
374
00:20:25,310 --> 00:20:29,172
NO WONDER THE ANCIENT EGYPTIANS
REVERED THE DUNG BEETLE.
375
00:20:29,172 --> 00:20:31,137
THEY BELIEVED
THEIR ROLLING BALLS
376
00:20:31,137 --> 00:20:36,206
REPRESENTED THE SUN'S MOVEMENT
ACROSS THE SKY.
377
00:20:36,206 --> 00:20:38,310
AMAZINGLY, THE EGYPTIANS KNEW
378
00:20:38,310 --> 00:20:41,275
THEN WHAT WE'VE ONLY
JUST DISCOVERED NOW.
379
00:20:41,275 --> 00:20:45,068
THAT DUNG BEETLES REALLY
ARE CELESTIAL CRITTERS.
380
00:20:45,068 --> 00:20:48,000
CAPTIONS PAID FOR BY
DISCOVERY COMMUNICATIONS
29314
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