All language subtitles for Earth.Odyssey.With.Dylan.Dreyer.S07E06.1080p.WEB.h264-DiRT_track3_[eng]

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

TELEVISION THAT'S EDUCATIONAL
AND INFORMATIONAL.

THE MORE YOU KNOW ON NBC.

DYLAN: HI EVERYONE, I'M DYLAN
DREYER AND WE ARE OFF TO

ENCOUNTER EARTH'S MOST
EXTRAORDINARY ANIMALS RIGHT

HERE ON EARTH ODYSSEY.

TODAY, WE'LL MEET ANIMALS
CONSIDERED FIRST IN THEIR CLASS.

THOSE THAT OUTSIZE, OUT EAT OR
OUT PACE THE COMPETITION.

WE'LL BEGIN WITH THE WORLD'S
LARGEST LAND CARNIVORE AND HIS

PRECARIOUS LIFE ON ICE.

THEN GET UP CLOSE AND PERSONAL
WITH THE BIGGEST FISH IN THE

SEA.

PLUS, WE'LL CRUISE WITH A
SALTWATER REPTILE WHO'S LARGE

AND IN CHARGE.

AND FOLLOW IN THE FOOTSTEPS OF
THE MIGHTIEST MAMA WALKING THE

EARTH.

THIS AND MUCH MORE COMING UP ON
EARTH ODYSSEY.

[MUSIC]

DYLAN: EARTH HAS BEEN HOME TO
SOME IMPRESSIVELY LARGE MAMMALS

LIKE THE WOOLLY MAMMOTH AND
THE SABER-TOOTHED TIGER.

THOSE GIANTS MAY BE EXTINCT, BUT
OUR PLANET STILL HOSTS

EXTRAORDINARY CREATURES TODAY.

THAT INCLUDES ANIMALS THAT ARE
THE BIGGEST, THE HUNGRIEST AND

THE MOST RESILIENT OF THEIR
ANIMAL FAMILIES.

OUR FIRST STORY BEGINS FAR NORTH
IN THE ARCTIC CIRCLE WHERE ONE

MAGNIFICENT MAMMAL IS KING OF
THE ICE AND SEA.

IN THE ARCTIC CIRCLE, THE ICY
SURFACE OF THE ARCTIC OCEAN HAS

BEGUN TO MELT AND BREAK APART.

[MUSIC]

DYLAN: FOR THE POLAR BEAR,
THE SEA ICE IS A VAST DOMAIN

COVERING MILLIONS OF SQUARE
MILES.

THIS IS WHERE HE MUST TRAVEL,
REST AND HUNT FOR MONTHS ON

END.

THIS LARGEST OF BEAR SPECIES
FEEDS MAINLY ON SEALS AND HE

RELIES ON THE ICE TO CATCH THEM.

WITH A LANDSCAPE SO SPARSELY
POPULATED, IT CAN TAKE DAYS TO

FIND A MEAL.

THERE'S NOT A SEAL IN SIGHT, BUT
AN ENTICING AROMA ON THE BREEZE

COMPELS THE HUNTER ONWARDS.

HIS SURVIVAL IN THE COLD WITH
FEW OTHER SPECIES DEPENDS ON

PERSISTENCE.

THE POLAR BEAR SEARCHES FOR A
BREATHING HOLE THAT A SEAL MIGHT

EMERGE FROM.

[MUSIC CONTINUES]

DYLAN: HIS EXCEPTIONAL SENSE OF
SMELL ALLOWS HIM TO SNIFF OUT

SEALS UNDERWATER FROM A HALF
MILE AWAY AND THOSE ON TOP OF

THE ICE FROM 20 MILES AWAY.

HIS BEST OPTION NOW IS TO WAIT.

BUT THERE'S NO GUARANTEE A SEAL
WILL SURFACE RIGHT HERE.

EVENTUALLY, THE BEAR SPIES A
SEAL ON THE ICE.

IN THIS ENVIRONMENT, THERE'S NO
CHANCE OF A SUBTLE APPROACH.

THERE'S NOWHERE TO HIDE.

THE SEAL SENSES A THREAT.

THE BEAR IS A GOOD SWIMMER.

[MUSIC]

DYLAN: HE CAN'T BEAT A SEAL,
BUT POLAR BEARS CAN HOLD THEIR

BREATHS FOR TWO MINUTES.

AMBUSH IS HIS ONLY CHANCE.

[MUSIC CONTINUES]

DYLAN: HE'S NOT CLOSE ENOUGH.

HE WILL SPEND HALF HIS LIFE
HUNTING, BUT LESS THAN 2% OF

ATTACKS ARE SUCCESSFUL.

EACH YEAR, HUNTING BECOMES MORE
DIFFICULT AS THE ICE MELTS

FASTER AND GROWS THINNER.

HIS HABITAT IS DISAPPEARING,
DISRUPTING HUNTING PATTERNS AND

THREATENING THE SPECIES'
SURVIVAL.

FINALLY, THE BEAR IS ABLE TO
REST.

CURLING UP IN THE MIDDLE OF THE
FROZEN SEA, HE SETTLES IN FOR A

WINTER'S NAP.

COMING UP, YOU MIGHT THINK THE
BIGGEST SHARK IN THE SEA WOULD

BE THE FIERCEST.

WE FIND OUT IF THIS FISH IS
DANGEROUS OR DOCILE.

AND EVEN THE BIGGEST PREDATORS
START OUT SMALL, COME ALONG AS

THESE HATCHLINGS LEARN HOW TO
HUNT.

PLUS, ONE OUTSIZED MAMMAL HAS A
MASSIVE EFFECT ON ITS

ENVIRONMENT, BUT IT'S ALL FOR A
GOOD CAUSE.

MORE WHEN EARTH ODYSSEY COMES
RIGHT BACK.

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

[MUSIC]

DYLAN: ON THE EAST INDIAN OCEAN,
750 MILES NORTH OF PERTH,

AUSTRALIA, LIES A CORAL
REEF TEEMING WITH LIFE.

NINGALOO REEF IS YOUNGER THAN
THE FAMOUS GREAT BARRIER REEF.

IT WAS FORMED WHEN WARMING OCEAN
CURRENTS CAUSED CORAL LARVAE TO

DRIFT SOUTH FROM THE EQUATOR.

NOW, THE DIVERSE HABITAT
STRETCHES FOR NEARLY 200 MILES.

THE UNITED NATIONS HAS NAMED IT
A WORLD HERITAGE SITE.

IT HAS A VAST NETWORK OF
SUBTERRANEAN CAVES AND

WATERWAYS.

TODAY, MORE THAN 200 CORAL
SPECIES ARE FOUND IN NINGALOO.

IT'S A THRIVING ECOSYSTEM WITH
MORE THAN 500 DIFFERENT KINDS OF

FISH, INCLUDING THE BIGGEST ONE
ON THE PLANET.

[MUSIC]

DYLAN: THE WHALE SHARK.

AT MORE THAN 30 FEET LONG, HE'S
AROUND 30 YEARS OLD.

BUT WHALE SHARKS CAN GROW UP TO
40 FEET.

THAT'S BIGGER THAN A SCHOOL BUS.

THE SHARK'S ARRIVAL HERE IS IN
SYNC WITH THE CORAL'S MASS

SPAWNING.

PLANKTON NUMBERS EXPLODE AS THEY
FEED ON THE SPAWN.

IN TURN, PLANKTON ATTRACT THE
HUNGRY WHALE SHARKS.

THIS ONE'S TRAVELED MORE THAN
900 MILES TO GET HERE.

AND TO A WHALE SHARK, THIS REEF
IS PARADISE.

SHARKS HAVE A FEARSOME
REPUTATION FOR ATTACKING PREY.

BUT THE WHALE SHARK IS A FILTER
FEEDER, MAKING HIM A GENTLE

GIANT.

[MUSIC]

DYLAN: HIS FIVE-FOOT-WIDE
MOUTH ENGULFS MILLIONS

OF THE MICROSCOPIC PREY.

HE IS NOT THE ONLY ONE TRAWLING
THE PLANKTON BLOOM.

400 OF THESE GIANT OCEAN FISH
DESCEND ON THE REEF EVERY YEAR

FROM TROPICAL WATERS NORTH
AND SOUTH OF THE EQUATOR.

[MUSIC CONTINUES]

DYLAN: ONLY ACTUAL WHALES ARE
BIGGER THAN THE WHALE SHARK IN

THE EARTH'S OCEANS.

DESPITE THEIR ENORMOUS SIZE,
THEY FEED ON THE SMALLEST OF

OCEAN PREY.

BUT AS SOON AS THE PLANKTON
LEVELS DROP, THESE SIZABLE

SHARKS WILL HEAD BACK OUT TO
DEEPER WATERS IN THE INDIAN

OCEAN.

COMING UP, EARTH'S BIGGEST SHARK
MAY BE ONE OF THE GENTLEST FISH

IN THE SEA.

BUT EARTH'S BIGGEST REPTILE HAS
A DRASTICALLY DIFFERENT

PERSONALITY AND THE TEETH TO
MATCH.

AND WE FOLLOW IN THE DUSTY
FOOTSTEPS OF THESE QUEENS OF THE

SERENGETI AS THEY SEARCH FOR
PRECIOUS WATER, WHEN EARTH

ODYSSEY COMES RIGHT BACK.

.

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

[MUSIC]

DYLAN: BEING THE BIGGEST DOESN'T
ALWAYS MEAN STANDING OUT IN A

CROWD.

IN FACT, EARTH'S LARGEST REPTILE
IS ALSO ONE OF ITS STEALTHIEST,

AN APEX AMBUSH PREDATOR WHO
KNOWS EXACTLY HOW TO LIE IN WAIT

UNTIL THE RIGHT PREY COMES
ALONG.

TAKE A LOOK.

THE RICHEST RAINFORESTS IN THE
WORLD CAN BE FOUND ON THE

EQUATORIAL ISLAND OF BORNEO.

GIANT RIVERS CRASH DOWN FROM THE
MOUNTAINS, DELIVERING FRESH

WATER AND LIFE TO THE JUNGLES
BELOW.

THE HUMID LOWLANDS ARE IDEAL FOR
PLANT GROWTH.

SOME OF THE MOST PRODUCTIVE
MANGROVE SYSTEMS ON EARTH CAN BE

FOUND HERE.

MANGROVES THRIVE ALONG RIVERS
AND SHORELINES IN A MIX OF FRESH

AND SALT WATER.

IT'S AN IRRESISTIBLE HUNTING
GROUND FOR THE PLANET'S LARGEST

REPTILE.

THIS SALTWATER CROCODILE IS
RETURNING TO HER NEST.

THIS IS A HYPER-CARNIVOROUS APEX
PREDATOR, KNOWN TO EAT ANY

PREY OF NEARLY ANY SIZE.

BUT HER HATCHLINGS ARE STILL
LEARNING.

IN ORDER TO CLIMB THE FOOD
CHAIN, THEY HAVE TO START SMALL

AND MUST WAIT UNTIL THE COVER OF
DARKNESS TO HUNT.

[MUSIC]

DYLAN: THE NIGHT IS QUIET, BUT
THE YOUNG CROCODILE ISN'T THE

ONLY PREDATOR PATROLLING THESE
WATERS.

IT HAS COMPETITION.

A BUFFY FISH OWL IS ALSO ON THE
LOOKOUT FOR ITS NEXT MEAL.

IT WATCHES THE YOUNG CROCODILE
STALK A MUDSKIPPER, WITHOUT ANY

LUCK.

THINKING IT CAN DO BETTER, THE
OWL SWOOPS DOWN FOR A KILL.

BUT IT, TOO, EMERGES WITHOUT A
MEAL.

THE YOUNG CROCODILE SPIES AN
OPPORTUNITY DOWNSTREAM.

[MUSIC CONTINUES]

DYLAN: AND ON ITS SECOND TRY,
THE OWL GETS LUCKY, TOO.

IT LANDS A FISH.

IT'S A MANGROVE SMORGASBORD
WHERE PREDATORS ARE SPOILED FOR

CHOICE.

THE MANGROVES ARE AN INTERTIDAL
WONDERLAND, PERFECT FOR THE

MUDSKIPPER'S UNIQUE BIOLOGY.

SPECIALLY ADAPTED FINS PROPEL
THEM ACROSS THE MUDFLATS.

AS LONG AS THEY STAY WET,
MUDSKIPPERS CAN REMAIN OUT OF

THE WATER FOR EXTENDED PERIODS.

THEY CARRY MOISTURE INSIDE THEIR
MOUTHS AND ENLARGED GILL SACS.

AND THEY CAN EXTRACT OXYGEN
DIRECTLY FROM THEIR DAMP SKIN.

DURING HIGH TIDE, THE
MUDSKIPPERS WALLOW

IN THE WARM SHALLOWS.

AT LOW TIDE, THEY GET BUSY.

EACH HAS A U-SHAPED BURROW, SOME
MORE THAN THREE FEET DEEP.

THEY HAVE TO KEEP IT OPEN,
DESPITE THE CONSTANT INFLUX OF

WATER AND SEDIMENT.

IT'S HERE THAT THE FEMALE LAYS
HER EGGS.

[MUSIC]

DYLAN: THE BIGGEST CHALLENGE
IS KEEPING INTRUDERS OUT.

SOME MUDSKIPPERS BUILD WALLS
AROUND THEIR HOMES TO MARK OUT

THE NO-GO ZONE.

INVASIONS ARE NOT APPRECIATED.

TEMPERS FLARE WHEN A HOME
INVADER REFUSES TO LEAVE.

THE FISH USE THEIR GAPING MOUTHS
LIKE SUCKERS, AIMING TO GET A

HOLD.

LUCKILY, THESE FIGHTS ARE MOSTLY
JUST A DISPLAY OF POWER AND

DOMINANCE.

A WINNING MALE WATCHES AS HIS
CHALLENGER SLINKS AWAY.

THE CONTEST IS OVER AND HIS
TERRITORY SECURED.

NOW HE JUST NEEDS TO STEER CLEAR
OF THE SALTWATER CROC.

COMING UP, THE LARGEST SPECIES
WALKING THE EARTH ALWAYS FOLLOWS

ITS LEADER.

AND ITS LEADER IS ALWAYS FEMALE.

FIND OUT HOW THIS FEARLESS
MATRIARCH LEADS HER HERD TO

WATER WHEN EARTH ODYSSEY
RETURNS.

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

[MUSIC]

DYLAN: THE WORLD'S LARGEST LAND
MAMMAL IS THE MIGHTY AFRICAN

ELEPHANT.

FOUND IN SOUTHERN AND EASTERN
AFRICA, THIS MASSIVE SPECIES HAS

OUTSIZED SURVIVAL SKILLS.

BUT IN A HOT, DRY LAND, IT FACES
A CONSTANT BATTLE TO STAY COOL.

FLAPPING THEIR BIG EARS HELPS
COOL THEIR BLOOD SUPPLY.

WEIGHING ANYWHERE FROM 4 TO
14,000 POUNDS, GETTING RID OF

HEAT IS A MAJOR ISSUE FOR THE
ELEPHANT.

EACH ANIMAL NEEDS TO DRINK
HUNDREDS OF GALLONS OF WATER

EVERY DAY TO STAY HYDRATED.

AND THE REWARDS OF THIS WATERING
HOLE HAVE EVAPORATED.

THE HERD RELIES ON THE MATRIARCH
TO GUIDE THEM TO ANOTHER SOURCE

OF WATER.

MOTHERS, AUNTS, SISTERS, AND
YOUNG ONES FOLLOW HER LEAD.

SHE TAKES ONE OF MANY
WELL-TRAVELED ELEPHANT HIGHWAYS.

AT THIS TIME OF YEAR, SOME PATHS
WILL LEAD TO DUST BOWLS OF

DISAPPOINTMENT.

BUT THE MATRIARCH KNOWS OTHER
ROUTES TO FOLLOW.

FOR A YOUNG CALF, A LONG TREK
FOR WATER IS HARD WORK.

BUT THEIR JOURNEY GREATLY
BENEFITS THE WORLD AROUND THEM.

ELEPHANTS AREN'T JUST LARGE.

THEY PROVIDE ESSENTIAL SERVICES
TO OTHER LIVING CREATURES ON THE

SAVANNAH.

AFRICAN ELEPHANTS ARE KNOWN AS
KEYSTONE SPECIES.

THAT MEANS THEY'RE VITAL TO THE
ECOSYSTEMS THEY INHABIT.

AS THEY TRAVEL, THEY CONSUME AN
ENORMOUS AMOUNT OF FOOD.

[MUSIC]

DYLAN: THEY PUSH OVER LARGE
TREES, CREATING SPACE AND LIGHT

FOR GRASS TO GROW.

AS THEY MIGRATE ACROSS THE
PLAINS, THEY DISPERSE SEEDS AS

THEY GO.

AND WHEN THEY GET THIRSTY, THEY
DIG HOLES TO REACH WATER,

CREATING NATURAL WELLS THAT
OTHER ANIMALS CAN USE.

TO COOL OFF PROPERLY, ELEPHANTS
NEED A REAL MUD BATH.

[MUSIC CONTINUES]

DYLAN: AFTER TREKKING MORE
THAN 60 MILES, THE HERD FINALLY

ARRIVES AT AN OASIS.

IT'S A WATER FESTIVAL.

AND FOR THE CALVES, A NEW
DELIGHT.

BUT THERE IS NEVER AN IDEAL
MOMENT TO RELAX IN THE

SERENGETI.

A YOUNG ELEPHANT HAS WANDERED
OFF FROM THE HERD, INTENT ON

EXPLORING ITS NEW SURROUNDINGS,
FINDING A NICE SPOT FOR A DUST

BATH.

BUT HE'S NAIVE TO SO MANY
THREATS.

HIS FAMILY CONTINUES TO BATHE AS
HE HEADS AWAY FROM THE WATERHOLE

IN FULL VIEW OF A PRIDE OF
LIONS.

LUCKILY, ONE OF THE ADULTS WARNS
HIM JUST IN TIME.

AND THE YOUNGSTER IS ABLE TO
REJOIN THE HERD, SAFE FOR

ANOTHER DAY.

MEGAFAUNA IS THE SCIENTIFIC NAME
FOR THE LARGEST VERTEBRATES ON

EARTH.

THEY'RE OUR BIGGEST ANIMALS, BUT
THEY'RE ALSO THE MOST

ENDANGERED.

CONSERVATION EFFORTS ARE
CRITICAL TO KEEPING THESE

EXCEPTIONAL CREATURES AND THEIR
HABITATS ECOLOGICALLY SAFE AND

SOUND, SO WE CAN ALL ENJOY OUR
BIODIVERSE PLANET AND ITS

AMAZING INHABITANTS FOR
GENERATIONS TO COME.

THANKS FOR WATCHING.

I'M DYLAN DREYER.

SEE YOU NEXT TIME ON EARTH
ODYSSEY.

[MUSIC]