All language subtitles for Earth.Odyssey.with.Dylan.Dreyer.S03E32.1080p.WEB-DL.AAC2.0.H.264-BTN_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, EVERYBODY, I'M DYLAN
- DREYER, AND THIS IS "EARTH

ODYSSEY".

ON TODAY'S EPISODE, GET READY TO

PLUNGE IN TO ONE OF THE MOST

BEAUTIFUL, VIBRANT, AND LIVING

PLACES IN THE WORLD, THE SEA.

WE HEAD TO THE GALAPAGOS

ISLANDS, A SPECTACULAR BREEDING

GROUND FOR ONE ODD-LOOKING

SHARK.

- AND THEN WE'LL HEAD TO THE SEA
- TO SEE WHO HAS BEEF IN THE REEF.

PLUS, WE'LL SEE IF WE CAN FIND

VANCOUVER ISLAND'S UNDERWATER

GIANTS.

[MUSIC]

- DYLAN: CANADA'S VANCOUVER
- ISLAND IS HOME TO SOME OF THE

WORLD'S MOST DIVERSE AND

EXTRAORDINARY WILDLIFE, BUT THE

WATER THAT SURROUNDS THE ISLAND

IS EQUALLY ABUNDANT.

ALONG 2,000 MILES OF COASTLINE,

YOU'LL SEE EVERYTHING FROM SEA

LIONS TO GIANT OCTOPUSES, AND

IT'S HOME TO ONE ANIMAL THAT'S

BIGGER THAN ANYTHING WITH FOUR

LEGS ON LAND OR EIGHT LEGS IN

THE SEA.

LET'S EXPLORE THE LIFE OF

VANCOUVER ISLAND'S GENTLE GIANT,

THE HUMPBACK WHALE.

- VANCOUVER ISLAND IS HOME TO ONE
- OF THE WORLD'S MOST DIVERSE

ECOSYSTEMS, GLACIER-CAPPED

MOUNTAINS, ANCIENT FORESTS,

NUTRIENT-RICH OCEANS, AND A

NETWORK OF RIVERS AND CREEKS

THAT SUPPORT A WILDERNESS LIKE

NO OTHER.

BUT ONE CREATURE STANDS OUT

ABOVE ALL THE REST,

THE PACIFIC SALMON.

VIRTUALLY ALL LIFE HERE RELIES

ON ITS EXISTENCE...

[WHALE BLOWING]

...LIKE THIS GENTLE GIANT.

HUMPBACK WHALES CAN REACH 52

FEET IN LENGTH AND WEIGH MORE

THAN 36 TONS, MAKING THEM THE

FIFTH LARGEST ANIMAL ON THE

PLANET.

AND SALMON AREN'T ON THEIR MENU.

- THE HUMPBACKS' ENORMOUS FRAMES
- ARE FUELED BY SMALL SCHOOLING

FISH LIKE HERRING AND SWARMS OF

TINY SHRIMP-LIKE CRUSTACEANS

KNOWN AS KRILL.

THESE TOOTHLESS WHALES USE A

MASS OF BRISTLES CALLED BALEEN

PLATES TO FILTER FOOD FROM THE

WATER.

THE HUMPBACKS ARE ABOUT TO

EMBARK ON A MAMMOTH JOURNEY.

- THEY SPEND EACH WINTER IN THE
- WARMER SOUTHERN WATERS OFF

MEXICO AND HAWAII MORE THAN

3,000 MILES AWAY.

- THIS IS WHERE THEY'LL BREED
- BEFORE RETURNING TO VANCOUVER

ISLAND'S FOOD-RICH WATERS WITH

THEIR CALVES IN TOW.

BUT ONE WHALE NEVER LEAVES THE

REGION, AND THIS PREDATOR CAN

HAVE A TASTE FOR SALMON.

KILLER WHALES WEIGH UP TO NINE

TONS AND ROAM THE ISLAND'S COAST

IN PODS OF UP TO 30 INDIVIDUALS.

UNLIKE HUMPBACKS, THEY HAVE MORE

THAN 20 PAIRS OF POINTED

INTERLOCKING TEETH.

ALSO KNOWN AS ORCAS, NAMED AFTER

THE ROMAN GOD OF THE UNDERWORLD,

THEY HUNT IN PACKS AND ARE OFTEN

REFERRED TO AS THE WOLVES OF THE

SEA.

BUT THIS PARTICULAR POD POSES NO

THREAT TO THE SALMON.

THESE KILLER WHALES HUNT

MAMMALS.

- WHILE THE RESIDENT PODS OF ORCAS
- EAT ONLY FISH, THIS VISITING

GROUP GOES FOR MUCH LARGER PREY,

SUCH AS SEA LIONS.

THESE SEA LIONS WERE LUCKY TO

GET AWAY.

COMING UP ON "EARTH ODYSSEY", WE

DIVE DEEP FOR A WHALE OF A GOOD

TIME.

THEN WITH NOTHING TO STOP THEM,

HURRICANES POUND THESE

VULNERABLE ISLANDS.

AND LATER, THE PIRATES MAY HAVE

VANISHED, BUT THEY LEFT BEHIND A

TREASURE FOR SOME SEAFARING

CARIBBEAN NATIVES.

THAT AND MUCH MORE COMING UP ON

"EARTH ODYSSEY".

- NARRATOR: WE'LL BE RIGHT BACK TO
- THE MORE YOU KNOW ON NBC.

.

NARRATOR: WE NOW RETURN TO THE

MORE YOU KNOW ON NBC.

- DYLAN: WELCOME BACK TO "EARTH
- ODYSSEY".

IN THE NORTHERN PARTS OF THE

CARIBBEAN SEA, THERE IS AN

UNDERWATER SHELF MADE ENTIRELY

OF LIMESTONE ROCK.

- FOUR HUNDRED YEARS AGO, A
- SPANISH GALLEON FILLED WITH

SILVER TREASURE SANK TO THE

BOTTOM OF THE SEA HERE.

LEGEND HAS IT THAT'S WHY IT'S

CALLED SILVER BANK.

THESE PROTECTED WARM WATERS ARE

NOW A NURSERY FOR ANOTHER OCEAN

TREASURE, BABY HUMPBACK WHALES.

THEY'RE CALLED CALVES.

FROM DECEMBER TO APRIL, THERE

ARE NEARLY 3,000 HUMPBACKS THAT

VISIT THE SILVER BANK NURSERY.

THE MOTHER HUMPBACK AND HER CALF

STAY CLOSE TOGETHER, CONSTANTLY

TOUCHING EACH OTHER AS THEY SWIM

IN THE CLEAR BLUE WATERS.

PHYSICAL CONTACT IS IMPORTANT

FOR THE BABY AND ITS MOTHER.

FOR THE FIRST YEAR, THE TWO WILL

STAY TOGETHER.

WHEN SUMMER GETS CLOSER, THE

WHALES WILL SWIM THOUSANDS OF

MILES AWAY.

- THEY HEAD NORTH TO THE COLD
- ATLANTIC OCEAN WATERS WHERE

THERE ARE PLENTY OF FISH.

- IT WILL BE TEN YEARS BEFORE THE
- CALF WILL FULLY GROW TO ITS

ENORMOUS SIZE.

SOME GET AS LARGE AS 52 FEET,

WEIGHING AN UNBELIEVABLE

100,000 POUNDS.

THESE CREATURES ARE LONG GONE BY

THE TIME ANOTHER FORCE OF NATURE

ROLLS THROUGH.

THE CLOUDS GATHER AS THE

PRESSURE DROPS.

THE WINDS DANGEROUSLY WHIP THE

ISLANDS.

- THE CARIBBEAN IS IN THE DIRECT
- PATH OF ONE OF THE MOST

DESTRUCTIVE WEATHER EVENTS IN

THE WORLD.

THIS IS HURRICANE ALLEY.

HURRICANES USUALLY START FAR

AWAY OFF THE COAST OF WEST

AFRICA.

- AS THEY MARCH ACROSS THE
- ATLANTIC OCEAN, THE STORMS GAIN

STRENGTH FROM THE WARM SUMMER

WATER.

IF THE WINDS REACH 74 MILES PER

HOUR, A STORM WILL OFFICIALLY

BECOME A HURRICANE.

- THE CARIBBEAN ISLANDS ARE LIKE
- SITTING DUCKS FOR THESE POWERFUL

EVENTS.

WINDS CAN TOP 160 MILES PER

HOUR.

AT THAT POINT, NOTHING IS SAFE.

WAVES ROLL IN 60 FEET HIGH,

CRUSHING EVERYTHING BELOW.

THE DELICATE CORAL REEFS, WHICH

LIVE JUST A FEW FEET UNDERWATER,

GET RIPPED OUT AND THROWN

AROUND.

THE CORAL LOOKS LIKE A PLANT,

BUT IT'S ACTUALLY BILLIONS OF

TINY ANIMALS ORGANIZED INTO

COLONIES CALLED POLYPS.

IN A HURRICANE, THESE CORAL

REEFS CAN BE TORN UP BY THE

ANGRY WATER.

LOOSE DEBRIS IS DANGEROUS FOR

MARINE LIFE.

THESE LOBSTERS SENSE THE

APPROACHING DANGER.

IT'S TIME TO EVACUATE BEFORE

THEY GET TRAPPED OR EVEN CRUSHED

BY THE ROCKS.

SINGLE-FILE, THE LOBSTERS FLEE

THE APPROACHING STORM.

THE LOBSTERS MIGRATE TO THE

SAFETY OF DEEPER WATERS.

AFTER THE HURRICANE PASSES,

THESE CORAL REEFS GET A SECOND

CHANCE.

THESE REEFS GROW QUICKLY.

RECOVERY IS UNDERWAY.

NEW LIFE TAKES SHAPE FROM THE

REMAINING CORAL, BUT THE REEFS

ARE TREACHEROUS AS WELL.

- SHIPS CAN RUN AGROUND IF THEY
- HIT A REEF.

THAT HAPPENED TO THE RHONE

STEAMER SHIP 150 YEARS AGO.

IT SANK TO THE BOTTOM OF THE

OCEAN IN SECONDS.

BUT THEN SOMETHING INCREDIBLE

HAPPENED.

THE CORAL LATCHED ONTO ITS

RUSTING HULL, SLOWLY TAKING OVER

THE SHIP AND COLONIZING IT.

MORE THAN A CENTURY LATER, THE

RHONE IS A MANMADE REEF ON THE

OCEAN FLOOR, HOME TO THOUSANDS

OF MARINE ANIMALS AND PLANTS.

FISH PARTICULARLY LIKE TO TAKE

UP RESIDENCE.

THESE PURPLE SPOTS ARE ACTUALLY

FISH EGGS.

THEY BELONG TO THE SERGEANT

MAJOR FISH.

THE FEMALE WILL LAY AS MANY AS

200,000 EGGS WHILE THE MALE

PATROLS THE AREA.

HE'LL WATCH FOR ANY INTRUDERS

UNTIL THE EGGS HATCH JUST SIX

DAYS LATER.

COMING UP ON "EARTH ODYSSEY",

THE WORLD'S OCEAN CURRENTS COME

TOGETHER CREATING A SPECTACULAR

BREEDING GROUND FOR ONE

ODD-LOOKING SHARK.

AND LATER, WE PLUNGE INTO THE

WATER TO WITNESS A FISHY FAMILY

REUNION.

- NARRATOR: WE'LL BE RIGHT BACK TO
- THE MORE YOU KNOW ON NBC.

.

NARRATOR: WE NOW RETURN TO THE

MORE YOU KNOW ON NBC.

DYLAN: WELCOME BACK.

- ON EVERY "EARTH ODYSSEY", WE
- FIND A DIVERSE GROUP OF WILDLIFE

ALL WITH UNIQUE TRAITS THAT

SERVE THEM IN THE WILD.

- WELL, YOU'RE ABOUT TO MEET
- ANOTHER ANIMAL WITH A SPECIAL

TALENT FOR SURVIVING AND

THRIVING.

TAKE A LOOK.

THERE ARE THREE OCEAN CURRENTS

THAT COLLIDE RIGHT AT THE

GALAPAGOS, AND EVEN THOUGH THESE

ISLANDS ARE ON THE EQUATOR, ONE

OF THE HOTTEST POINTS ON EARTH,

THEY ENJOY DRIER, COOLER AIR.

THE OCEAN CURRENTS HEAVILY

IMPACT THE CLIMATE.

- FIRST, THE PANAMA CURRENT WARMS
- THE WATER FOR THE TROPICAL

MARINE LIFE.

- THE FREEZING COLD HUMBOLDT
- CURRENT FROM ANTARCTICA CHILLS

THE WATER.

AND THE CROMWELL CURRENT CARRIES

DEEP COOL WATER TO THE SURFACE

AS IT APPROACHES THE GALAPAGOS

SHELF.

- THE MIXTURE OF CURRENTS IS THE
- PERFECT RECIPE TO CREATE A

NUTRIENT-RICH OCEAN FULL OF

GREEN ALGAE, WHICH HAPPENS TO BE

THE FAVORITE FOOD FOR THE

500-PLUS SPECIES OF FISH

SWIMMING IN THESE WATERS,

LITTLE

AND BIG.

WITH SUCH ABUNDANT FOOD, THESE

PREDATORS HUNT OFF THE GALAPAGOS

COASTLINES ALL YEAR.

- HAMMERHEAD SHARKS GET THEIR
- NAMES FROM THEIR

UNUSUALLY-SHAPED HEADS.

THEIR EYES ARE THREE-AND-A-HALF

FEET APART, AND SOME HAMMERHEADS

GROW TO BE 12 FEET LONG.

BUT POSSIBLY THE BIGGEST

SURPRISE DOWN HERE FOR

SCIENTISTS, PENGUINS, LOTS OF

THEM,

AND THE ONLY KIND OF ITS SPECIES

NORTH OF THE EQUATOR.

- SCIENTISTS THINK GALAPAGOS
- PENGUINS SWAM UP FROM ANTARCTICA

DURING THE LAST ICE AGE.

- WHEN THE EARTH WARMED UP AND THE
- ICE MELTED, THE PENGUINS

COULDN'T GET BACK TO THE SOUTH

POLE.

- STUCK ON THE ISLANDS, THEY
- LEARNED TO ADAPT TO THE WARMER

CLIMATE, ENJOYING THE ABUNDANT

MARINE LIFE DOWN BELOW.

UP NEXT, WE PLUNGE INTO THE

WATER TO WITNESS A FISHY FAMILY

REUNION.

- NARRATOR: WE'LL BE RIGHT BACK TO
- THE MORE YOU KNOW ON NBC.

.

NARRATOR: WE NOW RETURN TO THE

MORE YOU KNOW ON NBC.

DYLAN: WELCOME TO THE WILD

ISLAND CHAIN OF ZANZIBAR, LYING

25 MILES OFF THE EAST COAST OF

TANZANIA IN AFRICA.

BENEATH THE SURFACE, YOU'LL FIND

SOME OF THE LARGEST CREATURES IN

THE SEA.

THIS CORAL REEF IS A LIVING

SEASCAPE MADE UP OF MILLIONS OF

TINY PLANT-LIKE ANIMALS KNOWN AS

CORAL POLYPS.

TOGETHER, THEY ACT AS A SINGLE

SUPER-SIZED ORGANISM.

SECRETING CALCIUM CARBONATE FROM

THEIR BASE, THE POLYPS FORM

COMPLEX AND STRIKING SCULPTURES.

COLONIES GROW OVER THOUSANDS OF

YEARS, EVENTUALLY JOINING OTHER

COMMUNITIES TO BECOME A REEF.

SOME STRETCH 55 MILES ACROSS THE

OCEAN FLOOR AND HAVE BEEN

- GROWING FOR MORE THAN 50 MILLION
- YEARS.

ZANZIBAR HOSTS SOME OF THE MOST

SPECTACULAR CORAL GARDENS IN THE

WORLD, AND MORE THAN 90 PERCENT

OF EAST AFRICA'S HARD CORAL

SPECIES ARE FOUND HERE.

THESE RAINFORESTS OF THE SEA ARE

AT THE HEART OF THE ENTIRE

UNDERWATER ECOSYSTEM.

ANEMONES, SEA CUCUMBERS, EELS,

AND AN ARRAY OF TROPICAL FISH

MAKE THIS UNDERWATER EDEN THEIR

PERMANENT HOME.

FARTHER ALONG THE REEF LOOMS

ANOTHER GIANT.

OF THE 400 OR SO SPECIES OF RAY,

THE MANTA IS THE LARGEST.

THESE ALIEN-LOOKING CREATURES

CAN GROW UP TO AN INCREDIBLE 22

FEET ACROSS AND WEIGH AS MUCH AS

4,000 POUNDS.

THEY LEAD SOLITARY LIVES AND

ONLY COME TOGETHER IN LARGE

NUMBERS UNDER CERTAIN

CONDITIONS.

THESE MANTA RAYS HAVE TRAVELED

FAR TO THIS SECTION OF REEF FOR

A SPECIAL SERVICE.

THIS CLEANING STATION PROVIDES

THE OPPORTUNITY FOR A GOOD ONCE

OVER FROM ATTENTIVE CLEANER

FISH.

FLASHES OF BLUE AND YELLOW

ADVERTISE THEIR PRESENCE.

THE CLIENTS HAPPILY FLOOD IN,

BUT BEFORE THE MANTA RAYS TAKE

UP THIS SERVICE, THEY NEED TO

FORM A LINE.

INDIVIDUALS SIZE ONE ANOTHER UP

BY SWIMMING PARALLEL TO THE

REEF.

- ONCE A HIERARCHY IS ESTABLISHED,
- THEY TAKE TURNS SWOOPING INTO

THE STATION.

- EACH SPECIES OF CLEANER FISH
- NIBBLES A DIFFERENT SECTION TO

REDUCE COMPETITION.

- THIS MUTUALLY BENEFICIAL
- RELATIONSHIP PROVIDES THE FISH

WITH A STEADY SUPPLY OF FOOD AND

ENSURES THE MANTA'S SKIN IS FREE

OF DEAD CELLS AND PARASITES.

CLEANING SESSIONS CAN LAST UP TO

THREE HOURS, AND ONCE THOROUGHLY

SCRUBBED, THE MANTA RAYS HEAD

BACK INTO THE DEEP.

- UNLIKE MANY OF THEIR SHARK
- COUSINS, THESE GRACEFUL GIANTS

POSE NO THREAT TO OTHER FISH.

MANTA RAYS ARE FILTER FEEDERS,

AND WHEN PLANKTON BLOOMS,

EVERYONE JOINS THE FEEDING

FRENZY.

FILTERING LARGE VOLUMES OF

WATER, THEY FUNNEL THESE

MINIATURE PREY INTO THEIR GAPING

MOUTHS.

A SINGLE MANTA CAN CONSUME UP TO

37 POUNDS OF PLANKTON A DAY.

- AS MORE MANTA JOIN THE FEEDING
- FRENZY, THEY ARE SUDDENLY

ECLIPSED BY ONE OF ZANZIBAR'S

GREATEST OCEANIC GIANTS.

WHALE SHARKS CAN GROW TO OVER 65

FEET AND WEIGH UP TO 68,000

POUNDS.

THAT'S MORE THAN FIVE AFRICAN

ELEPHANTS.

THEY ARE BY FAR THE LARGEST FISH

IN THE WORLD.

DWARFING EVERYTHING IN THEIR

WAKE, THEY SURVIVE ON SOME OF

THE SMALLEST ORGANISMS IN THE

OCEAN.

THEY CAN SIFT MORE THAN 1,500

GALLONS OF WATER AN HOUR.

FINE FILTERS ALSO KNOWN AS GILL

RAKERS TRAP ANY ORGANISM OVER

TWO MILLIMETERS WIDE.

MOST SPECIES OF SHARK WAVE THEIR

TAILS TO PROPEL THEMSELVES;

HOWEVER, WHALE SHARKS ARE UNIQUE

IN MOVING THEIR ENTIRE BODIES

FROM SIDE TO SIDE.

- THEY REMAIN CLOSE TO THE
- SURFACE, AND THEIR TOP SPEED IS

A MODEST THREE MILES PER HOUR.

- THESE GIANTS THAT SWIM IN THE
- OCEAN, ALONG WITH THOSE WHO MAKE

THEIR HOME ON THE BEACHES, GIVE

ZANZIBAR THE WILD CHARACTER THAT

MAKES IT ONE OF THE MOST

INTERESTING AND BEAUTIFUL PLACES

ON EARTH.

- THANKS FOR JOINING ME ON THIS
- SPECTACULAR JOURNEY THROUGH THE

GREATEST PLACES ON EARTH.

WE'LL SEE YOU NEXT TIME FOR

ANOTHER "EARTH ODYSSEY".

[MUSIC]