All language subtitles for Earth.Odyssey.With.Dylan.Dreyer.S05E23.1080p.WEB.h264-DiRT_track3_[eng]

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NARRATOR: WHEN YOU SEE THIS
SYMBOL, YOU KNOW YOU'RE

WATCHING TELEVISION THAT IS
EDUCATIONAL AND INFORMATIONAL.

THE MORE YOU KNOW ON NBC.

DYLAN: HI EVERYONE, I'M DYLAN
DREYER.

ARE YOU READY FOR AN EPIC
AFRICAN ADVENTURE?

WE'VE GOT ONE COMING UP RIGHT
HERE ON "EARTH ODYSSEY".

TODAY, WE'RE HEADED TO AFRICA TO
FIND THIS LUSH CONTINENT'S MOST

ASTONISHING ANIMALS.

WE'LL MEET THE BIGGEST
PERSONALITY IN THE SAVANNAH AND

CATCH UP WITH A BRIGHT-EYED
BUNCH OF BABY IMPALAS.

PLUS, A LETHAL LAY-ABOUT
ENJOYING A COOL DIP.

BUT FIRST, WE'RE GOING TO GET UP
CLOSE AND PERSONAL WITH ONE OF

AFRICA'S HIGH-CLASS CREATURES.

ALL OF THIS AND MORE COMING UP
ON "EARTH ODYSSEY".

[MUSIC]

DYLAN: I'M HERE AT BROOKFIELD
ZOO WITH DR. MIKE ADKESSON, AND

WE HAVE OUR VERY SPECIAL GUEST,
ARNITA, THIS GIANT GIRAFFE.

MIKE, I CAN'T HELP BUT WONDER
HOW GIRAFFES GET SO HUGE.

DR. ADKESSON: THEY START OUT BIG
AS

ONE OF THE FIRST PIECES TO THAT
ANSWER, SIX

FEET TALL, 150 POUNDS WHEN
THEY'RE BORN, AND THEY JUST GO

UP FROM THERE.

THEY'RE NATURALLY EVOLVED TO
REACH HIGH UP INTO THOSE

TREETOPS TO GRAB HOLD OF THE
LEAVES THAT NONE OF THE OTHER

ANIMALS CAN REACH.

DYLAN: AND WHY DO WE TEND TO SEE
OUR BIGGEST ANIMALS IN THE

AFRICAN SAVANNAH?

DR. ADKESSON: YEAH, SO ABUNDANT
FOOD SUPPLIES, TROPICAL, NICE

TEMPERATURE ALL YEAR ROUND.

SO IT'S REALLY JUST--IT'S A
GREAT, ABUNDANT PLACE FOR THEM

TO LIVE.

DYLAN: DR. MIKE, THANK YOU SO
MUCH.

DR. ADKESSON: WELCOME.

DYLAN: HARD-TO-REACH LEAVES
AREN'T THE ONLY REWARD FOR BEING

AS TALL AS A GIRAFFE.

THEIR HEIGHT ALSO GIVES THEM AN
UNMATCHED VIEW OF THEIR

SURROUNDINGS, MEANING THEIR
SIGHT IS ONE OF THE BEST

IN THE REGION.

THE GIRAFFE ALSO HEARS EXTREMELY
WELL.

WITH ITS HEAD SO FAR OFF THE
GROUND, IT DOESN'T MISS MUCH.

IN THE WILD, EVERY ANIMAL, LARGE
OR SMALL, WHATEVER ITS SPECIES,

MUST HAVE ITS SENSES ALERT ALL
THE TIME.

THIS HELPS THEM ESCAPE FROM
THEIR PREDATORS, FIND FOOD,

MANAGE THEIR FAMILIES, AND
ORGANIZE THEIR SOCIAL LIVES.

IMPALAS ARE KNOWN FOR THEIR
ACUTE EYESIGHT, BUT HAVE A

SOMETIMES FATAL FLAW.

THEY CAN'T LOOK UP.

SO A HUNTER HIDING ABOVE EYE
LEVEL HAS A DISTINCT ADVANTAGE.

LUCKILY, THIS TIME, THEY HAVE
SENSED THE LEOPARD, SO HIS

ATTACK HASN'T CAUGHT THEM BY
SURPRISE.

THIS PREDATOR NEVER PURSUES HIS
PREY.

HIS TECHNIQUE IS THE AMBUSH.

WHILE HE MAY FAIL NINE TIMES OUT
OF TEN, IT ONLY TAKES ONE

SUCCESS TO SURVIVE.

FOR SOME, LIKE THE LEOPARD,
SIGHT IS THE MAIN SENSE.

FOR OTHERS, THE DOMINANT SENSE
IS HEARING.

FOR THIS WARTHOG, IT IS SMELL.

THERE ARE THOSE WHO CAN SEE LONG
DISTANCES...

...THE ONES WHO CAN SEE IN THE
DARK,

THOSE WHO CAN SEE IN COLOR.

THIS ONE HEARS INFRASOUND,
SOUNDWAVES TOO LOW FOR

HUMANS TO PICK UP.

THERE ARE WITHOUT A DOUBT AS
MANY SITUATIONS

AS THERE ARE SPECIES.

THE RHINOCEROS, FOR EXAMPLE, HIS
MUZZLE IS WHITE, HIS EAR FLAPS

WELL-DEVELOPED, BUT CONSIDERING
HIS SIZE, HIS EYES ARE TINY.

THIS TENDS TO DEMONSTRATE THE
FACT THAT THE RHINO'S SIGHT IS

VERY POOR.

HE CAN'T SEE ANYTHING CLEARLY
MORE THAN 50 FEET AWAY.

HE MAKES UP FOR THIS HANDICAP BY
A WELL-DEVELOPED SENSE OF SMELL

AND IMPECCABLE HEARING.

HIS EARS MOVE INDEPENDENTLY AND
REACT TO THE SLIGHTEST SOUND.

[BIRDS SQUAWKING]

THE PROBLEM IS THAT IF THE WIND
PICKS UP AND BLOWS IN THE WRONG

DIRECTION, THE RHINOCEROS FINDS
HIMSELF PRACTICALLY DEPRIVED OF

ANY INFORMATION.

THE SENSES OF THE HERBIVORES
SERVE PRIMARILY

TO DETECT PREDATORS.

FROM ONE SPECIES TO ANOTHER,
THERE ARE DIFFERENCES OF VISUAL,

OLFACTORY, OR SMELL, AND
AUDITORY ACUTENESS.

ANIMALS PROBABLY HAVE SOME IDEA
OF EACH OTHER'S WEAKNESSES AND

OF THE APTITUDES OF THEIR
NEIGHBORS.

THIS WOULD EXPLAIN WHY ANIMALS
OF DIFFERENT

SPECIES DRAW TOGETHER.

BY BEING MORE NUMEROUS AT ANY
ONE SPOT WITH DIFFERENT SENSORY

CAPACITIES, THEY CONSIDERABLY
IMPROVE THE OVERALL SAFETY OF

THE GROUP.

THIS WATERBUCK, WHICH DOESN'T
HAVE THE SAME NEEDS OR THE SAME

SOCIAL ORGANIZATION AS THE
WILDEBEEST OR THE IMPALA,

NEVERTHELESS APPRECIATES THEIR
COMPANY, BECAUSE HE TAKES

ADVANTAGE OF THEIR VIGILANCE.

THESE THREE SPECIES ARE PREY TO
THE SAME PREDATORS, SO THEY

BENEFIT FROM BANDING TOGETHER
AND SHARING THEIR SENSES.

COMING UP, A MASSIVE MAMMAL
REVEALS ITS

BEST SURVIVAL TACTICS.

THEN WE'LL MEET AN ADORABLE
ANTELOPE ADOLESCENT.

AND LATER, A REPTILE WITH A
RUGGED REPUTATION,

WHEN "EARTH ODYSSEY" RETURNS.

.

NARRATOR: WE NOW RETURN TO THE
MORE YOU KNOW ON NBC.

DYLAN: AS THE SUN SHIFTS, THE
CHANGE IN LIGHT PUTS A SPOTLIGHT

ON AFRICA'S BIGGEST
PERSONALITIES.

THE ELEPHANTS ARE ON THE MOVE,
SEARCHING FOR FOOD TO SATIATE AN

INCREDIBLE APPETITE.

UNLIKE MOST ANIMALS, FEMALE
ELEPHANTS HAVE THEIR UTTERS ON

THE FRONT PART OF THEIR BODIES.

THIS MAKES SUCKLING EASIER FOR
THE CALVES, WHO CAN USE THEIR

MOUTHS DIRECTLY RATHER THAN
THEIR TRUNKS, WHICH THEY HAVEN'T

YET REALLY LEARNED TO USE
PROPERLY.

THE ELEPHANT HAS MANY ANATOMICAL
PECULIARITIES,

BUT EACH OF THEM IS PART OF A
REMARKABLY COHERENT WHOLE.

ANY PROBLEM IS LINKED TO A
SOLUTION TO HELP GET AROUND IT.

BARE SKIN EXPOSED TO THE HEAT OF
THE SUN, NO PROBLEM.

IT HAS ITS THREE-FOOT-LONG EARS
TO HELP COOL IT DOWN, AND SINCE

THEY ARE FULL OF BLOOD VESSELS,
THE ANIMAL CAN REGULATE THE

BLOOD TEMPERATURE FOR ITS WHOLE
BODY.

ONE REAL PROBLEM WAS ITS WEIGHT,
200 POUNDS OF TRUNK PLUS THE

WEIGHT OF THE TUSKS.

BUT THE TUSKS CAN HELP TO
SUPPORT SOME OF THE WEIGHT OF

ITS TRUNK...

...ADDED TO WHICH THE ELEPHANT
HAS UNIQUE FEET WITH WHICH TO

SUPPORT ITS ENORMOUS MASS.

EACH HAS FIVE INSET FINGERS
WHICH CANNOT BE SEEN.

THEY ARE VERTICAL WHEN THERE IS
NO PRESSURE ON THE FOOT, BUT

WHEN THE FOOT IS PUT DOWN, THEY
SPREAD OUT TO PROVIDE A DE FACTO

SHOCK ABSORBER.

ELEPHANTS ARE VERY DIFFERENT
FROM HIPPOS AND RHINOS.

THEY DO NOT BELONG TO THE SAME
FAMILY, HAVE VERY DIFFERENT

SOCIAL STRUCTURES, AND LEAD VERY
DIFFERENT LIVES.

NEVERTHELESS, SOMETHING OTHER
THAN THEIR BARE SKIN, MASSIVE

SIZE, AND A VEGETARIAN DIET
UNITES THEM.

THEY HAVE SURVIVED THROUGHOUT
THE AGES TO LIVE

ALONGSIDE US, PROOF THAT
THESE ARE TRIED AND TESTED

WAYS OF LIFE THAT HAVE PROSPERED
HERE FOR CENTURIES

AND SHOW NO SIGNS OF STOPPING.

WHEN WE COME BACK, ONE OF THE
WILD'S CUTEST

KIDS IS ON THE HUNT FOR A WARM
MEAL.

AND WE'LL SEE A RAZOR-SHARP
SMILE FROM A NATIVE OF THE NILE.

[HIPPO GROANING]

BUT FIRST, IT'S TIME FOR
WILDLIFE A TO Z.

PROFESSIONAL CARE FOR EARTH'S
WILDEST WONDERS IS NO EASY TASK,

ESPECIALLY WHEN IT COMES TO
AFRICAN LIONS...

[LION ROARING]

...WHO EAT ABOUT 20 POUNDS OF
MEAT ON AVERAGE IN A SINGLE DAY.

BUT GOOD NUTRITION ISN'T THE
ONLY ITEM ON THE

DAY-TO-DAY CARE MENU.

DAILY ENRICHMENT ACTIVITIES ARE
ESSENTIAL TO

AN ANIMAL'S WELFARE.

TODAY AT BROOKFIELD ZOO, THESE
LIONS ARE BEING GIVEN A NEW

CHALLENGE TO ENCOURAGE THEIR
NATURAL BEHAVIOR.

IT TAKES BOTH PHYSICAL AND
INTELLECTUAL POWER TO BRING DOWN

THIS DANGLING DELECTABLE.

HOWEVER, SOMETIMES THE BEST
ENRICHMENT COMES FROM SIMPLY

HAVING A RAMBUNCTIOUS ROOMMATE.

THERE'S STILL A WHOLE LOT MORE
TO COME ON "EARTH ODYSSEY"

RIGHT AFTER THIS.

.

NARRATOR: WE NOW RETURN TO THE
MORE YOU KNOW ON NBC.

DYLAN: NOT EVERY PREDATOR IN
THE AFRICAN WILD SPORTS FOUR

LEGS AND RAZOR-SHARP TEETH LIKE
WE THINK OF WITH LIONS,

CHEETAHS, OR CROCODILES.

IN FACT, SOME OF THE MOST
ACCOMPLISHED HUNTERS

DON'T HAVE TEETH AT ALL.

BIRDS ARE MASTERS OF THE CATCH,
USING NOT ONLY THEIR FLYING

SKILLS AND AGILITY, BUT ALSO
THEIR CUNNING IN ORDER TO SNAG

THEIR NEXT MEAL.

HOWEVER, SOMETIMES THE MOST
EFFECTIVE HUNTING TECHNIQUE IS

SIMPLY KNOWING HOW TO BE IN THE
RIGHT PLACE AT THE RIGHT TIME.

A FULL NIGHT OF HEAVY RAINFALL
HAS CAUSED THESE

RIVERBANKS TO OVERFLOW.

BUT THIS FLOOD OFFERS A FEAST OF
OPPORTUNITIES TO

AFRICA'S EXPERT FISHERMEN...

...LIKE THIS WOOLLY-NECKED STORK
LOOKING TO FIND A FROG

TO TUCK INTO.

AS FOR THE MARABOU, HE'S ALREADY
FOUND A LARGE ONE.

AFTER HEAVY RAINS, FROGS ARE NOT
REALLY IN A PARTY MOOD.

PREDATORS ARE COMING FROM
EVERYWHERE,

AND EVEN THE HAMERKOP WREAKS
HAVOC IN THEIR RANKS

WITH ITS TASTE FOR TADPOLES.

WORKING ITS WAY DOWN THE
RIVERBANKS, A GREY HERON IS

WAITING TO AMBUSH ITS PREY, AND
IT'S MAKING CATCH AFTER CATCH.

THEY HAVE HARDLY SWALLOWED ONE
FROG BEFORE TAKING A FEW STEPS

FARTHER ALONG TO CATCH ANOTHER.

THE SAVANNAH UNFURLS ITS
BEAUTIFUL GREEN COAT IN ALL ITS

SPLENDOR AS FAR AS THE EYE CAN
SEE.

FOOD IS PLENTIFUL ON DAYS LIKE
THIS, EVEN IF THE FULL BELLY OF

SOME IS AT THE COST OF ITS PREY.

THESE SWALLOWS, STUFFED WITH THE
BOUNTY OF INSECTS AVAILABLE, ARE

RED-BREASTED SWALLOWS.

THERE ARE ABOUT 100 SPECIES, BUT
THE RED-BREASTED SWALLOWS, AT

ABOUT EIGHT INCHES LONG, ARE
AMONG THE BIGGEST.

WHILE THE BATTLE BETWEEN PREY
AND PREDATOR MAY DOMINATE THE

LANDSCAPE, INSECTS QUIETLY
DECORATE THE TALL GRASSES,

FLOWERS, LEAVES, AND THE
BRANCHES.

THESE TINY BEINGS DEFEND
THEMSELVES AS WELL AS THEY CAN,

SOMETIMES ADOPTING RATHER UNIQUE
STRATEGIES.

THESE CATERPILLARS HAVE SPINES
AND VIVID COLORS TO DISSUADE

THEIR AGGRESSORS.

ANOTHER USES A MASKING
TECHNIQUE, TAKING ON THE RATHER

UNPLEASANT APPEARANCE OF BIRD
DROPPINGS SO AS NOT

TO ATTRACT ATTENTION.

STRANGE, BUT EFFECTIVE,
CONVINCING EVEN THE MOST EAGER

PREDATOR TO TRY THEIR LUCK
SOMEWHERE ELSE.

WHEN WE RETURN, THERE'S A
PREHISTORIC PREDATOR LURKING

UNDER THE WATER'S SURFACE COMING
UP ON "EARTH ODYSSEY".

.

NARRATOR: WE NOW RETURN TO THE
MORE YOU KNOW ON NBC.

DYLAN: NOT EVERY ONE OF
AFRICA'S ASTONISHING SIGHTS IS

ALWAYS ON SHOW.

HERE, THE MUDDY WATERS MASK A
LETHAL LURKING PREDATOR, THE

CROCODILE, ALMOST ENTIRELY
INVISIBLE.

THIS EGYPTIAN GOOSE IS LOOKING
FOR SOMETHING TO EAT NEAR THE

WATER'S EDGE AND IS IN FOR QUITE
A FRIGHT.

ON A LITTLE ISLAND IN THE MIDDLE
OF THE RIVER, THE GOLIATH HERON

DOES A LITTLE GROOMING WHILE
WAITING FOR THE WATER TO CLEAR.

THIS BIRD IS FIVE FEET LONG,
MAKING IT THE LARGEST HERON IN

THE WORLD.

ITS LONG, STREAMLINED BEAK
ALLOWS IT TO SPEAR ITS PREY,

WHICH CAN BE UP TO AN ENTIRE
FOOT LONG,

AN IMPRESSIVE MEASURE FOR THIS
CHAMPION OF THE HERONS.

IN THE COMPETITION TO CATCH BIG
FISH, THERE ARE TWO HEAVYWEIGHT

CONTESTANTS, THE AFRICAN FISH
EAGLE...

...AND THE OSPREY.

AND ON THE OTHER SIDE OF THE
RIVER NEXT TO EACH OTHER ON THE

SAME TREE SITS TWO OF THESE VERY
PREDATORS WITH THE CATCH.

ON THE LOWER BRANCH, THE LARGE
BIRD OF PREY WITH BROWN FEATHERS

IS THE SAME SPECIES AS THE ONE
SITTING ON THE UPPER BRANCH.

THEY'RE BOTH FISH EAGLES.

ON TOP, THE ADULT WITH ITS
CHARACTERISTIC WHITE HEAD.

ON THE BOTTOM, A YOUNG ANIMAL.

IF THE SIZE OF HIS CATCH IS
ANYTHING TO GO BY, HE'S ALREADY

AN EXCELLENT FISHERMAN.

THE RIVER HAS CLEARED AGAIN, AND
THAT MAKES THE GREAT EGRET'S

FISHING A LITTLE EASIER.

UNDER THE VERY EYES OF A SMALL
HERON, AN ENORMOUS NILE

CROCODILE APPEARS.

ITS SIZE, POWER, PREDATORY
CAPACITY, STAMINA, AND LONGEVITY

MAKE THE CROCODILE ONE OF
NATURE'S

MOST IMPRESSIVE PREDATORS.

AMONG THE MAMMALS, THE
HIPPOPOTAMUS TAKES THE LEAD IN

HOLDING ITS BREATH.

ITS RECORD IS SIX MINUTES, BUT
MORE OFTEN THAN NOT, IT REMAINS

ONLY TWO MINUTES UNDERWATER.

WHEN THE HIPPOPOTAMUS DIVES
BELOW THE WATER'S SURFACE, ITS

HEART GOES FROM 60 TO 20 BEATS A
MINUTE.

ITS SLOWER METABOLISM ALLOWS IT
TO REDUCE

FOOD REQUIREMENTS CONSIDERABLY.

THE HIPPOPOTAMUS LIVES ON THREE
TIMES LESS FOOD THAN ANY OTHER

ANIMAL OF THE SAME SIZE, AN
IMPRESSIVE FEAT FOR SUCH A

MASSIVE MAMMAL AND A TRULY
ASTONISHING ADDITION TO THE

WILDS OF AFRICA.

THANK YOU FOR JOINING US ON OUR
TOUR OF AFRICA TO SEE THE

INCREDIBLE COLLECTION OF ANIMALS
THAT CALL THIS REGION HOME.

THE BIODIVERSITY HERE IS
STAGGERING WITH ALL MANNER OF

MAMMALS, REPTILES, AND BIRDS
DOMINATING THE LANDSCAPE.

IT'S NO WONDER THIS CONTINENT
HAS THE WORLD'S MOST DENSE AND

RICH POPULATION OF WILDLIFE.

CLEARLY, THERE'S SOMETHING
SPECIAL ABOUT WHAT AFRICA

HAS TO OFFER.

WE'LL SEE YOU NEXT TIME FOR
ANOTHER EPISODE OF

"EARTH ODYSSEY".

[MUSIC]