All language subtitles for Earth.Odyssey.with.Dylan.Dreyer.S01E01.1080p.WEB-DL.AAC2.0.H.264-BTN_track3_[eng]

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ANNOUNCER: WHEN YOU SEE THIS
SYMBOL YOU KNOW YOU'RE

WATCHING TELEVISION THAT'S
EDUCATIONAL AND INFORMATIONAL

THE MORE YOU KNOW ON NBC.

DYLAN: HEY THERE,
I'M DYLAN DREYER,

AND THIS IS “EARTH ODYSSEY.”

ON TODAY'S EPISODE, WE EXPLORE
THE LUSH TROPICAL LANDSCAPE OF

VIETNAM.

[MONKEYS HOWLING]

DYLAN: WE'LL MEET A VERY
VOCAL GROUP OF GIBBONS AND

FIND OUT WHAT
MAKES THEM SING.

PLUS, WE'LL VENTURE
INTO THE JUNGLES TO SEE A

RECENTLY DISCOVERED GROUP
OF LANGURS LONG THOUGHT

EXTINCT, AND LATER, WE'LL
GET A GLIMPSE OF ONE OF

THE RAREST AND MOST
COLORFUL PRIMATES IN THE

ENTIRE WORLD.

[MUSIC]

WHEN MOST PEOPLE
THINK OF FROG NOISES,

THEY THINK OF
THE SOUND RIBBIT.

WHILE THIS IS TRUE
FOR MANY FROG SPECIES,

POISON DART FROGS LIKE
THE ONES FOUND HERE AT

RIPLEY'S AQUARIUM OF
MYRTLE BEACH HAVE A

DISTINCT RODENT-LIKE CHIRP
THAT DOESN'T SOUND LIKE

RIBBIT AT ALL.

IN FACT, MANY ANIMALS
DON'T SOUND THE WAY WE

PERCEIVE THEY SHOULD.

TAKE, FOR EXAMPLE, THE
HAUNTING CALL OF THE

YELLOW-CHEEKED GIBBON.

ITS HIGH-PITCHED VOICE
WOULD MAKE AN OPERA SINGER

JEALOUS.

LET'S JOURNEY TO
VIETNAM AND TAKE A LISTEN.

SITUATED ON THE
EASTERNMOST RIM OF THE

INDOCHINA PENINSULA,
VIETNAM IS ONE OF THE MOST

BIODIVERSE
COUNTRIES IN THE WORLD.

APPROXIMATELY TEN PERCENT
OF THE WORLD'S ANIMAL

SPECIES LIVE
IN THIS REGION.

VIETNAM'S VAST RAINFORESTS
ARE HOME TO AN INCREDIBLE

ARRAY OF ANIMALS,
BUT 50 YEARS AGO,

ONE-FIFTH OF THESE JUNGLES
WERE DESTROYED DURING THE

VIETNAM WAR, HAVING A
DEVASTATING EFFECT ON THE

WILDLIFE POPULATION.

BUT WHEN THE WAR ENDED,
MOTHER NATURE RECLAIMED

THE LANDSCAPE.

TODAY, THE FORESTS ARE
ONCE AGAIN TEEMING WITH

BAMBOO, AN ESSENTIAL FOOD
SOURCE FOR MANY OF THE

COUNTRY'S ANIMAL SPECIES.

THE LOWLAND TROPICAL
FORESTS OF CAT TIEN

NATIONAL PARK IN SOUTHERN
VIETNAM ECHO WITH SOME OF

THE MOST HAUNTING SOUNDS
HEARD ANYWHERE IN THE

WORLD.

AND IF YOU LOOK
HIGH UP IN THE CANOPY,

YOU'LL FIND THE SOURCE
OF THESE ODD MELODIES.

THEY ARE ONE OF THE
MOST VOCAL PRIMATES IN THE

WORLD, A CREATURE WHO
DEPENDS ON A DIET OF

BAMBOO.

[MONKEYS HOWLING]

YELLOW-CHEEKED GIBBONS
MARK THEIR TERRITORY USING

LOUD NOISES INSTEAD OF
SCENT OR SCRATCHINGS.

EACH MORNING, ADULTS USE
HIGH-PITCHED CALLS TO WARN

NEIGHBORING GROUPS TO
KEEP THEIR DISTANCE.

THESE PRIMITIVE VOCALS CAN
BE HEARD FROM OVER A MILE

AWAY.

GIBBONS USE THE SAME
VOCAL TECHNIQUES THAT TAKE

PROFESSIONAL OPERA
SINGERS YEARS TO MASTER.

BY SINGING IN SOPRANO,
THEY'RE ABLE TO PUT MUCH

MORE POWER
BEHIND THEIR CALLS.

BY DAWN, THE
CHORUS IS OVER.

NOW THIS FEMALE AND HER
TWO YOUNGSTERS CAN RELAX,

THOUGH RESTING IS THE LAST
THING JUVENILE GIBBONS

WANT TO DO.

YELLOW-CHEEKED GIBBONS
ARE BORN WITH BLONDE FUR,

BUT AT AROUND
TWO YEARS OLD,

IT CHANGES TO BLACK, AND
WHILE MALES RETAIN THIS

DARK COLOR FOR LIFE,
FEMALES RETURN TO BLONDE

ONCE FULLY MATURE.

40 PERCENT OF THE CAT TIEN
REGION IS BAMBOO FOREST.

COMBINED WITH
TOWERING TREES,

IT'S THE PERFECT PLACE FOR
ENERGETIC YOUNGSTERS TO

SHOW OFF.

GIBBONS ARE THE
BEST BRACHIATORS,

OR SWINGERS,
ON THE PLANET.

THEY CAN REACH SPEEDS
UP TO 35 MILES AN HOUR

SWINGING 50 FEET
FROM BRANCH TO BRANCH.

AFTER PLAYTIME, THIS YOUNG
PRIMATE DECIDES IT'S TIME

TO REST.

HANGING FROM ONE ARM IS A
COMMON WAY FOR GIBBONS TO

RELAX.

LONG FINGERS AND POWERFUL
LIMBS ENABLE THEM TO HOLD

ON FOR OVER AN HOUR
WITHOUT LETTING GO.

WHEN IT COMES TO
FOOD, BAMBOO SHOOTS ARE A

PARTICULAR FAVORITE.

ALTHOUGH LEAVES, FRUITS,
AND SEEDS MAKE UP MOST OF

THEIR DIET, THEY ALSO
INDULGE IN INSECTS AND THE

OCCASIONAL BIRD'S EGG.

HAVING THUMB-LIKE
OPPOSABLE TOES ALLOWS

THEIR FEET TO GRASP LIKE
A SECOND PAIR OF HANDS;

HOWEVER, THIS YOUNG GIBBON
IS STILL GETTING USED TO

THE SLIPPERY
SURFACE OF BAMBOO CANES.

YELLOW-CHEEKED GIBBONS
SPEND MOST OF THEIR LIVES

IN THE UPPER
CANOPY OF THE TREES,

RARELY VENTURING DOWN
TO THE FOREST FLOOR,

AND FOR GOOD REASON.

THE GROUND LEVEL IS
THE REALM OF PREDATORS,

AND THIS YOUNG PRIMATE HAS
SOME POTENTIALLY DANGEROUS

COMPANY.

COMING UP, WITH SHARPENED
CLAWS AND THE ABILITY TO

CLIMB, WILL THIS BLACK
BEAR PROVE TO BE TOO GREAT

A FOE FOR THE
MUCH SMALLER GIBBON?

FIND OUT WHEN WE RETURN.

.

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

ANNOUNCER: THIS EPISODE OF
“EARTH ODYSSEY WITH DYLAN

DREYER” IS BROUGHT TO
YOU BY RIPLEY'S AQUARIUMS.

DYLAN: GIBBONS SPEND
THEIR DAYS IN THE RELATIVE

SAFETY OF THE TREES,
AND IT'S NOT HARD TO

UNDERSTAND WHY.

THE JUNGLES OF VIETNAM ARE
ALSO HOME TO A MUCH LARGER

AND MORE
POWERFUL CREATURE,

THE ASIATIC BLACK BEAR.

THIS YOUNGSTER HAS
VENTURED A LITTLE TOO

CLOSE TO THE GROUND AND
HAS BEEN SPOTTED BY THE

MUCH LARGER BLACK BEAR.

THIS SPECIES CAN
WEIGH UP TO 450 POUNDS.

THE PRIMATE'S MOTHER
SUDDENLY RECOGNIZES THE

DANGER.

SHE RUSHES TO THE SCENE
AND GUIDES HER YOUNGSTER

BACK TO THE SAFETY
OF THE TREETOPS.

ALTHOUGH ASIATIC BEARS
ARE EXCELLENT CLIMBERS,

THEY ARE NO MATCH FOR THE
JUNGLE'S BEST GYMNASTS.

ASIATIC BLACK BEARS ARE
SIMILAR IN SIZE TO THEIR

AMERICAN
COUNTERPARTS; HOWEVER,

THEY DIFFER BY HAVING
CREAM COLORED CRESCENTS

AROUND THEIR CHEST.

THEY ALSO HAVE LONG, THICK
FUR AROUND THEIR FACE AND

NECK THAT CAN GROW UP
TO SIX INCHES LONG.

DESPITE BEING ARMED WITH
INCH-LONG CURVED CLAWS AND

FLESH-TEARING TEETH,
THIS PREDATOR IS MAINLY

VEGETARIAN.

GRASS, BERRIES, AND ROOTS
MAKE UP A MAJORITY OF ITS

DIET; HOWEVER, INSECTS AND
BEE HONEY MAKE FOR A TASTY

SNACK IN BETWEEN MEALS.

THEIR NOSE CAN DETECT
THE SMELL OF HONEY FROM A

DISTANCE OF MORE
THAN THREE MILES AWAY,

BUT IF THEY CAN'T GET
TO THE TASTY NECTAR,

A TREE ANT WILL ALSO
SATISFY THEIR MIDDAY

HUNGER.

MOSQUITO-LIKE INSECTS
KNOWN AS MIDGES ARE A

CONSTANT SOURCE OF
IRRITATION IN VIETNAM'S

HUMID JUNGLES.

SO, AFTER WASHING DOWN
HIS MEAL WITH A SMEAR OF

STICKY TREE SAP, THIS MALE
DECIDES IT'S TIME TO COOL

DOWN AND INDULGE IN
SOME TEMPORARY BUG RELIEF.

ASIATIC BLACK BEARS LEAD A
MAINLY SOLITARY LIFE AND

USUALLY ROAM TERRITORIES
COVERING AROUND 25 SQUARE

MILES.

IN ORDER TO ATTRACT
FEMALES AND TO WARN OTHER

MALES NOT TO
INVADE THEIR TURF,

THIS MALE BEGINS TO SCENT
MARK SURROUNDING TREES.

IT'S ALSO A GREAT WAY TO
RELIEVE AN ITCHY BACK.

BUT THIS MALE'S DAILY
RITUAL IS SUDDENLY CUT

SHORT.

ANOTHER MALE HAS VENTURED
TOO CLOSE FOR COMPANY.

[BEARS GROWLING]

THE UNWELCOME VISITOR
SOON GETS THE MESSAGE.

THIS IS ONE OPPONENT
NOT TO BE MESSED WITH.

TO ESCAPE DANGER, BLACK
BEARS EITHER RUN AWAY OR

HEAD UP INTO THE TREES.

THIS GUY HAS
CHOSEN THE LATTER.

HE HAS NO CHOICE
BUT TO SIT IT OUT.

IT COULD BE HOURS BEFORE
HE FEELS SAFE TO COME

DOWN.

SO, WHAT BETTER EXCUSE TO
TAKE A MID-MORNING NAP?

COMING UP, WHAT'S GREY AND
WHITE AND RED ALL OVER?

THIS ODD-LOOKING PRIMATE,
AND YOU WON'T BELIEVE

THEIR INCREDIBLE AERIAL SKILLS

WHEN “EARTH ODYSSEY” RETURNS.

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

DYLAN: WELCOME BACK
TO “EARTH ODYSSEY.”

I'M DYLAN DREYER.

BEHIND ME, YOU CAN SEE A
VAST ARRAY OF FISH WHOSE

BRIGHT COLORS SERVE AS
CAMOUFLAGE TO BLEND INTO

THE CORAL REEFS
WHERE THEY RESIDE.

VIVID COLORING LIKE THIS
IS USUALLY UNCOMMON AMONG

MAMMALS, BUT YOU'RE ABOUT
TO MEET SOME VIETNAMESE

PRIMATES WHO ARE A
VIBRANT EXCEPTION.

THE SON TRA PRIMARY FOREST
ON THE DA NANG PENINSULA

IS ONE OF THE LAST
HAVENS FOR ONE OF THE MOST

BEAUTIFUL
MONKEYS IN THE WORLD,

THE RED-SHANKED DOUC,

NAMED BECAUSE OF THEIR

SCARLET-COLORED
LOWER LEGS.

RELYING MAINLY ON
LEAVES AND FRUIT,

THE RED-SHANKED DOUC
ALSO HAS A MULTI-CHAMBERED

STOMACH THAT CAN BREAK
DOWN THE TOUGH PLANT

CELLULOSE IN ITS DIET.

GASSY DIGESTIVE BIPRODUCTS
GIVE THEM A CONSTANTLY

BLOATED POTBELLIED LOOK.

STANDING ABOUT
TWO-AND-A-HALF FEET TALL,

THE RED-SHANKED DOUC IS A
RELATIVELY LARGE MONKEY.

THEIR TAILS ARE AS
LONG AS THEIR BODIES,

WHICH GIVES THEM EXCELLENT
BALANCE WHEN LEAPING

THROUGH THE CANOPY.

THEY ALMOST ALWAYS TAKE
OFF AND LAND FEET FIRST.

THE DOUC IS A
HIGHLY SOCIAL MONKEY,

USUALLY LIVING IN GROUPS
OF UP TO 15 MEMBERS.

UNLIKE OTHER PRIMATES,
THERE IS VERY LITTLE COLOR

DIFFERENCE BETWEEN
MALES AND FEMALES.

THIS PARTICULAR POPULATION
WAS ABLE TO THRIVE BECAUSE

THIS FOREST HAD BEEN A
NO-ENTRY ZONE FOR THE

PUBLIC SINCE 1975.

AROUND TWO HUNDRED
INDIVIDUAL LANGURS HAVE

NOW BEEN RECORDED
LIVING ON THIS ISOLATED

PENINSULA.

THEY REPRESENT OVER 60
PERCENT OF THE COUNTRY'S

POPULATION.

WITH THE JUNGLES MAKING
AN IMPRESSIVE COMEBACK,

THEY CAN REST ASSURED
THAT THEIR NUMBERS WILL

CONTINUE TO GROW.

WHEN “EARTH
ODYSSEY” RETURNS,

WE'LL MEET A SPECIES OF
CAVE-DWELLING LANGURS LONG

BELIEVED TO BE EXTINCT.

.

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

DYLAN: VIETNAM'S LABYRINTH
OF CAVES PROVIDE A

PERMANENT SHELTER FOR
ONE OF THE MOST UNCOMMON

PRIMATES IN THE WORLD.

HA LONG BAY IN NORTHERN
VIETNAM CONSISTS OF MORE

THAN 1,600 LIMESTONE
ISLANDS AND ISLETS.

IT'S ALSO HOME TO SOME OF
THE WORLD'S LARGEST CAVES.

THESE LIMESTONE CAVERNS
PROVIDE REFUGE TO SOME OF

THE RAREST
SPECIES OF LANGURS.

THESE LANGURS WERE FIRST
DISCOVERED IN THE 1960'S,

BUT THEY ALMOST COMPLETELY
DISAPPEARED FOLLOWING THE

VIETNAM WAR AND WERE
ASSUMED TO BE EXTINCT.

BUT 30 YEARS LATER, A
SMALL POPULATION WAS

DISCOVERED LIVING IN THE
CAVES OF THESE LIMESTONE

FORESTS.

THERE ARE BELIEVED TO BE
AROUND A THOUSAND LIVING

IN THE WILD TODAY.

LANGURS RARELY
COME TO THE GROUND,

SPENDING MOST OF THEIR
DAY FEEDING IN THE TREES.

LIKE OTHER
LEAF-EATING MONKEYS,

THEY LACK CHEEK POUCHES.

INSTEAD, THEY RELY ON A
COMPLEX MULTI-CHAMBERED

STOMACH.

THIS REQUIRES THEM TO EAT
ON A SEEMINGLY CONTINUOUS

BASIS.

MUNCHING ON SUCCULENT
LEAVES ALSO REDUCES THE

NEED TO DRINK WATER.

THE ADULTS IN THIS GROUP
TAKE A BREAK FROM FEEDING

TO INDULGE IN A
LITTLE MUTUAL GROOMING.

THIS RITUAL NOT ONLY
REINFORCES SOCIAL BONDS,

IT'S ALSO THE
PERFECT WAY TO RELAX.

BUT THESE YOUNGER MEMBERS
OF THE GROUP HAVEN'T QUITE

GRASPED LANGUR
SOCIAL ETIQUETTE.

THE ONLY WAY THESE
YOUNGSTERS KNOW HOW TO

UNWIND IS WITH A
GAME OF MONKEY TAG.

AS THEIR DAY
COMES TO A CLOSE,

THE LANGURS RETURN TO THE
SAFETY OF THEIR LIMESTONE

CAVERNS.

THE CAVES AND CREVASSES
PROVIDE SHELTER FROM THE

TROPICAL ELEMENTS, AND
AS THE SEASONS CHANGE,

THEY REMAIN AT A CONSTANT
COMFORTABLE TEMPERATURE.

WHILE THE POPULATION OF
HATINH LANGURS IS VERY

SMALL, THERE'S AN EVEN
MORE SPARSE POPULATION OF

LANGURS LIVING
IN THIS REGION.

DELACOUR'S LANGURS HAD
BEEN PRESUMED EXTINCT FOR

NEARLY 60 YEARS, BEFORE
THE VIETNAM WAR HAD EVEN

STARTED.

REMARKABLY, THEY
HAVE SURVIVED,

ALSO UTILIZING THESE
LIMESTONE CAVES LIKE THEIR

CLIFF-DWELLING COUSIN.

IT'S THOUGHT THAT ONLY
TWO HUNDRED OR SO OF THESE

LANGURS EXIST IN THE WILD,
MAKING THEM ONE OF THE

RAREST PRIMATES
ON THE PLANET.

THANKS FOR JOINING ME ON
THIS EXCITING EXPEDITION

THROUGH THE
RAINFORESTS OF VIETNAM,

A PLACE WHERE BOTH PLANTS
AND ANIMALS HAVE MADE AN

INCREDIBLE RESURGENCE,
PROVING ONCE AGAIN THE

TRUE RESILIENCE OF
THE NATURAL WORLD.

WE'LL SEE YOU NEXT TIME FOR
ANOTHER “EARTH ODYSSEY.”

[MUSIC]