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Welcome to
The Americas.
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An extraordinary journey...
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across Earth's great super continent.
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From the northern reaches of Canada...
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through the breathtaking
landscapes of the United States.
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South to the iconic Amazon rainforest...
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and the very tip...
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of Patagonia.
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Capturing the widest variety
of life on the planet.
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Five years in the making,...
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with 180 separate expeditions.
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Revealing new discoveries...
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only found here.
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For the first time...
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experience the strength...
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the heart...
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the hope.
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The untold story...
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of our home.
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_
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{\n8}Tonight on The Americas...
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The Atlantic Coast
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A world of wonder.
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Where enchanted seas...
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meet fairy-tale forests.
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And life finds a home amongst the bright lights...
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of a new world.
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Although over 100 million people live on America's East Coast,...
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this is also where you find...
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200,000 square miles of historic forest.
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And where the Carolinas' vast coastal plains...
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slip beneath the waves.
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Reemerging as the ever-shifting sands of the Outer Banks.
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These islands are home to surprising castaways.
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Wild horses.
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They live a perilous life,...
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braving tides and strong currents.
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Legend has it their ancestors were marooned here...
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when the ships of conquistadors were wrecked on these shores.
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But one stallion is doing very well here.
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He rules this part of the island,...
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carpeted in lush meadows.
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And at its heart lies the key to his success.
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A fresh water spring.
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Controlling this vital supply gives him power.
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For a decade, he's defended the well and his family...
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from other stallions.
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He bears the scars to prove it.
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But at 15 years old, the stallion may be past his prime.
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Losing one big fight...
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could mean the end of his reign.
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That fight looks to be on the cards.
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Because it's breeding season.
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He can smell that one of his mares is ready to mate.
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To heighten his senses,...
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he curls his lips, in what's known as the Flehmen response.
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But other stallions have noticed too.
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Including...
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his arch rival.
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This intruder may have dainty white feet,...
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but he's 500 pounds...
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of testosterone-fueled attitude.
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The aging stallion must rise to the challenge.
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Like prize fighters,...
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they size each other up.
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Stamping.
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And posturing.
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The intruder is younger and bigger,...
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but the wily old stallion has years of combat experience.
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A stamp of his foot says,...
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"Bring it on".
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The old stallion skillfully dodges flying hooves.
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He takes one ferocious kick to the chest...
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but rears up to avoid the knockout blow.
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That...
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was the challenger's best shot.
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And it wasn't enough.
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The stallion runs the intruder off his land.
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Victory for the veteran means he can stay with his family.
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And his place on these unique islands is secure,...
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for now.
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But here, danger is never far away.
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Out to sea, Atlantic waters are deadly.
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Both above...
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and below.
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In the waters just off the coast of North Carolina,...
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this sand tiger is heading to a shark "rendezvous".
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Ten feet long with teeth to die for,...
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this female certainly looks the part.
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But she is about to reveal a very different side to her nature.
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Sand tiger sharks are surprisingly sociable.
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Every summer, hundreds assemble here.
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But the purpose of these extraordinary gatherings...
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is still a mystery to scientists.
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They happen in a place of eerie beauty...
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known as "the graveyard of the Atlantic".
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More than 2000 ships have met their end on this coastline,...
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from Spanish galleons and pirate ships...
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to merchant vessels sunk in World War II.
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These rusting hulks create new habitats,...
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swiftly colonized by many creatures.
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Including vast shoals of scad.
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But these little fish have a big problem.
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They're on the menu.
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For jacks.
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30-pound high-speed hunters.
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And not just one of them.
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The scad must seek safety.
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And they find it somewhere extraordinary.
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With...
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the sharks.
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The scad use the sand tigers as bodyguards.
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Each shark finds itself cloaked in a shimmering veil of tiny scad.
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It's a remarkable relationship...
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and one rarely filmed.
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A hidden wonder...
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where the human world and the natural world meet.
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{\n8}Journey 200 miles up the Atlantic Coast,...
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and you'll discover the largest estuary in the U.S.,...
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Chesapeake Bay.
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Where 150 rivers meet the sea.
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It's here that this true American icon...
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is forced to meet its greatest challenge head-on.
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Winding through Maryland and Virginia,...
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the streams and rivers that feed Chesapeake Bay...
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are a haven for wildlife.
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But they are also among North America's busiest waterways.
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To thrive here takes a particular kind of attitude.
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A bald eagle,...
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the Atlantic Coast's great success story.
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In the 1970s, there were no eagles on this stretch of river.
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But thanks to protection...
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and the banning of harmful pesticides,...
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and now there are more than 300 breeding pairs.
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Their numbers are soaring.
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With a seven-foot wingspan...
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and eyesight five times better than ours,...
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this female looks the perfect predator.
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But for a bird that likes to hunt fish,...
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she has one major flaw.
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She's not built to take off from water.
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For all her power, fishing is not easy.
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Missed again.
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For most of the year, she can do well enough.
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But in the spring, everything changes.
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Ospreys arrive.
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Birds of prey supremely adapted to just one thing...
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fishing.
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In March each year, 20,000 ospreys migrate here from the south.
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They stay for the summer to raise their chicks.
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Now they're in the eagle's territory.
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Ospreys can hit the water...
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at 70 miles an hour.
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Their long legs stretch down to grab fish...
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three feet below the surface.
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Equipped with waterproof feathers, take-off is no problem for them.
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They're taking...
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a lot of her fish.
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Outclassed on home turf.
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It's time to impose a fish tax.
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Bald eagles have some powers that ospreys can't match.
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Audacity.
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Persistence.
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And sheer strength.
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Daylight robbery.
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A quick barrel roll.
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And it's time for her to collect.
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North America's...
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comeback queen.
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Flourishing on this most crowded coast.
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Almost a third of Americans make the Atlantic Coast home.
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The towns and cities we build...
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have been the biggest force of change here.
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Where animals can sometimes find themselves in an alien world.
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But here in the suburbs...
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there are aliens living among us.
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This peaceful corner of Maryland...
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is about to be invaded.
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On a sleepy Maryland street,...
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something is stirring.
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And it is not alone.
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This male and thousands of others...
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have spent 17 years...
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deep underground.
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They're called periodical cicadas,...
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and each is on a critical mission...
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to secure the next generation.
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But things here have changed.
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Seventeen years earlier, George W Bush was in the White House.
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No one had heard of a smart phone,...
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and many suburban developments...
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were still plots of woodland.
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Instinct drives the swarm to climb.
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Many fall at the first hurdle.
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But this male has found a good spot.
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A tall tree.
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The ideal place...
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to make a dramatic transformation.
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Breaking free from the husk of his old body,...
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he unfurls new wings.
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And his adult form is revealed.
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Around him, the others change, too...
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ahead of the next stage of the mission.
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It might seem a beautiful day in the neighborhood...
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but the human residents wake to an audio onslaught.
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The volume can exceed 96 decibels.
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It's like a rock concert in your front yard...
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with cicadas on vocals.
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But for the cicadas, this isn't a horror story.
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It's a romance.
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And the language of love...
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is music bug style.
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With many males for every female,...
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it isn't straightforward.
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Mm, perhaps three's a crowd.
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Maybe she's the one.
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It's time for a cicada serenade.
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Vibrating his body like a tiny violin.
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Dee waits for a special signal from her.
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And there it is.
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A snap of her wings that shows his charms...
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have won her over.
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After 17 years of waiting,...
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a brief encounter is all it takes to fertilize her 500 eggs.
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For the males, adult life is very short.
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After just a month,...
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it's all over.
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Now their bodies will nourish the soil for the next generation.
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While above, the female lays her precious eggs.
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A few weeks later, the young will drop to the ground...
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and burrow deep into the earth.
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When they emerge in 17 years' time,...
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who knows what they'll find?
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To keep up with the pace of the modern world,...
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animals have to be versatile.
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Meet one of the most adaptable in all the Americas.
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She can think and feel her way through any challenge.
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Getting a drink out of a water-filled tree hole?
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No problem.
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But she'll need all her wits about her...
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because this raccoon doesn't live in the woods.
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She's a New Yorker.
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New York City...
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Home to eight million people.
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Come on...
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โช Ooh, New York... โช
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But even here, the wildlife finds a way.
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Making the most of 20,000 acres of parks and gardens...
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is one of the cleverest animals in the Americas.
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A raccoon.
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Country raccoons are nocturnal.
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But here, they emerge in the daytime as well,...
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so they must be wary...
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of people, dogs and cars.
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Be kinda street-smart.
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This female needs to take extra care.
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She's a mom.
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The wall provides high-rise living for her growing family.
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These kits are four months old,...
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and they share their home with an older brother.
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He's getting ready to leave home for good.
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But raccoons aren't the only ones with a taste for city living.
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A red tailed hawk,...
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and it has its sights set...
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on the kits.
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Mom is alert to any sign of trouble.
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Come on, come on. Back inside.
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With that hawk nearby,
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she needs to stick around.
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There may be safety in numbers,...
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but this is becoming a tight squeeze.
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And something's gotta give.
273
00:30:12,760 --> 00:30:15,800
But it's best to wait for nightfall.
274
00:30:18,160 --> 00:30:20,240
This city may never sleep.
275
00:30:24,560 --> 00:30:25,640
But luckily,...
276
00:30:26,440 --> 00:30:27,440
hawks do.
277
00:30:32,280 --> 00:30:34,200
It's a chance for the eldest kit...
278
00:30:35,240 --> 00:30:37,919
to bid farewell to the family.
279
00:30:56,680 --> 00:30:58,960
As Mom watches him go,...
280
00:31:01,520 --> 00:31:03,400
he's tentative at first.
281
00:31:07,840 --> 00:31:09,200
He's on his own now.
282
00:31:10,800 --> 00:31:13,000
She must stay with her younger kits.
283
00:31:21,960 --> 00:31:24,920
But soon, he's free soloing with ease.
284
00:31:32,000 --> 00:31:36,320
His supersensitive paws help him find the safest footholds.
285
00:31:53,600 --> 00:31:57,320
And they're not bad for shucking snails, either.
286
00:32:06,920 --> 00:32:11,359
But alone on the parapet, he needs to keep on his toes.
287
00:32:20,760 --> 00:32:22,520
Yeah. Nice move.
288
00:32:30,120 --> 00:32:33,440
He seems ready to face the city on his own.
289
00:32:39,560 --> 00:32:42,640
In fact, there's evidence that an urban upbringing...
290
00:32:42,640 --> 00:32:45,480
makes raccoons better at problem-solving.
291
00:32:54,680 --> 00:32:57,359
He's gonna be just fine.
292
00:33:18,000 --> 00:33:21,040
Away from the magical bright lights of New York...
293
00:33:22,360 --> 00:33:25,360
is a different fairytale world.
294
00:33:31,280 --> 00:33:33,760
Deep in the Appalachian woods,...
295
00:33:35,280 --> 00:33:38,280
for a few bewitching summer nights,...
296
00:33:42,360 --> 00:33:45,880
fireflies take the stage.
297
00:33:48,080 --> 00:33:49,560
Males flash...
298
00:33:50,360 --> 00:33:51,960
to attract females.
299
00:33:54,040 --> 00:33:55,840
The chemical light they produce...
300
00:33:57,160 --> 00:34:00,160
is one of the most energy efficient on Earth.
301
00:34:03,320 --> 00:34:04,440
For the fireflies,...
302
00:34:05,000 --> 00:34:08,880
flashing in synchrony increases their impact.
303
00:34:11,640 --> 00:34:15,480
For us, it's pure wonder.
304
00:34:43,840 --> 00:34:48,240
Forests cover 65 percent of the Atlantic Coast.
305
00:34:50,960 --> 00:34:54,680
In one corner of Tennessee, there are so many trees,...
306
00:34:55,360 --> 00:34:57,520
they seem to create smoke.
307
00:34:59,760 --> 00:35:02,480
In fact, it's a unique fog.
308
00:35:05,160 --> 00:35:08,680
This is the Great Smoky Mountains National Park.
309
00:35:10,560 --> 00:35:13,680
And here, one black bear mom...
310
00:35:14,800 --> 00:35:18,919
is having trouble with some very hungry cubs.
311
00:35:27,480 --> 00:35:30,800
It's late summer in the Smoky Mountains,...
312
00:35:31,840 --> 00:35:36,440
the national park with the greatest biodiversity in America.
313
00:35:42,160 --> 00:35:45,400
The huge range of trees and plants...
314
00:35:45,960 --> 00:35:49,160
provides a varied menu for this mother bear...
315
00:35:49,720 --> 00:35:52,120
and her six-month-old cubs.
316
00:35:53,800 --> 00:35:56,040
With winter just a few months away,...
317
00:35:56,040 --> 00:35:58,600
they need to pile on the pounds.
318
00:35:59,120 --> 00:36:02,120
And there's one food that will help them get there.
319
00:36:03,800 --> 00:36:04,800
Cherries.
320
00:36:09,960 --> 00:36:12,040
They're high in fats and protein,...
321
00:36:12,680 --> 00:36:15,640
so it's crucial the cubs make the most of them.
322
00:36:17,960 --> 00:36:21,360
But someone beat them to it.
323
00:36:22,320 --> 00:36:23,440
A trespasser.
324
00:36:24,680 --> 00:36:25,880
An adult male.
325
00:36:27,760 --> 00:36:28,800
And what's worse,...
326
00:36:29,880 --> 00:36:32,159
males sometimes kill cubs.
327
00:36:43,400 --> 00:36:45,160
He's no match...
328
00:36:46,400 --> 00:36:48,240
for a protective mom.
329
00:37:07,000 --> 00:37:11,679
Now the family can focus on getting those cherries.
330
00:37:19,120 --> 00:37:22,160
The tasty fruits are not easy to reach.
331
00:37:24,040 --> 00:37:25,920
Especially if you're a cub.
332
00:37:27,960 --> 00:37:30,040
Mom's got a workaround.
333
00:37:37,640 --> 00:37:40,360
Her cubs, though, don't yet have the strength...
334
00:37:42,720 --> 00:37:43,780
or the skill.
335
00:37:57,120 --> 00:37:59,640
But they do appear to be fearless.
336
00:38:05,800 --> 00:38:08,920
This is going out on a limb.
337
00:38:10,480 --> 00:38:12,720
At just 30 pounds, the cubs are light enough...
338
00:38:12,720 --> 00:38:14,560
to climb to the ends of branches.
339
00:38:17,800 --> 00:38:20,520
But a fall from this height could be fatal.
340
00:38:26,640 --> 00:38:28,240
They've got the hang of it.
341
00:38:29,760 --> 00:38:32,240
And these calorie-packed cherries...
342
00:38:32,240 --> 00:38:35,760
will help the cubs to gain the weight they'll need...
343
00:38:35,760 --> 00:38:38,359
to survive the coming winter.
344
00:38:42,360 --> 00:38:45,000
The Smokies are a magical place,...
345
00:38:46,720 --> 00:38:49,920
and as America's most visited national park,...
346
00:38:51,160 --> 00:38:53,840
they bring that magic to millions.
347
00:38:58,320 --> 00:38:59,720
Heading north,...
348
00:39:00,560 --> 00:39:03,960
the ancient Appalachians formed the backbone...
349
00:39:03,960 --> 00:39:05,720
of the Atlantic Coast.
350
00:39:07,040 --> 00:39:09,360
Eventually, their weathered peaks...
351
00:39:09,360 --> 00:39:10,720
reached New England.
352
00:39:12,840 --> 00:39:17,440
Two hundred years ago, the woods here were cleared for agriculture.
353
00:39:19,000 --> 00:39:21,320
But when many farmers headed west,...
354
00:39:22,080 --> 00:39:26,240
the forest made a spectacular return.
355
00:39:27,560 --> 00:39:31,640
And now there are six and a half billion trees.
356
00:39:34,920 --> 00:39:39,800
In the heart of Massachusetts stands a queen of the woods.
357
00:39:41,080 --> 00:39:42,600
A red oak tree,...
358
00:39:43,680 --> 00:39:46,959
known here as Triple Oak.
359
00:39:53,760 --> 00:39:57,720
She has weathered 130 years of change.
360
00:39:59,520 --> 00:40:03,560
Right now, she faces the inevitable turn of the seasons.
361
00:40:07,440 --> 00:40:09,640
Throughout the long days of summer.
362
00:40:10,240 --> 00:40:13,440
her leaves captured the sun's energy,...
363
00:40:15,720 --> 00:40:20,760
using green chlorophyll to produce the sugar she needs to thrive and grow,...
364
00:40:21,560 --> 00:40:24,200
and the oxygen we need to breathe.
365
00:40:30,760 --> 00:40:33,160
But winter is coming.
366
00:40:35,160 --> 00:40:39,360
The shorter days mean there won't be enough sunlight to power her leaves.
367
00:40:40,720 --> 00:40:44,720
So Triple Oak must do something remarkable.
368
00:40:47,840 --> 00:40:50,600
She withdraws her chlorophyll.
369
00:40:53,280 --> 00:40:55,920
As the green pigment is extracted,...
370
00:40:56,480 --> 00:40:59,519
all the other colors are revealed.
371
00:41:06,680 --> 00:41:08,720
For a few short weeks,...
372
00:41:08,720 --> 00:41:13,679
Triple Oak wears a gown of burnished gold.
373
00:41:16,760 --> 00:41:19,160
But her work isn't finished.
374
00:41:20,120 --> 00:41:21,400
In winter storms,...
375
00:41:21,400 --> 00:41:25,000
a tree in full leaf catches the wind like a ship in full sail.
376
00:41:25,520 --> 00:41:27,080
She could be uprooted...
377
00:41:27,880 --> 00:41:30,120
so her leaves must go.
378
00:41:32,200 --> 00:41:37,280
Triple Oak creates a layer of cells that seal the leaf off from its twig.
379
00:41:39,360 --> 00:41:43,080
Denied the tree's life support, the leaf dies...
380
00:41:49,600 --> 00:41:51,040
and is cast aside.
381
00:41:53,560 --> 00:41:57,040
Triple Oak then heals the scar.
382
00:41:59,840 --> 00:42:03,559
A process she repeats 200,000 times.
383
00:42:09,560 --> 00:42:10,960
Across New England,...
384
00:42:12,160 --> 00:42:17,840
countless oaks, maples, beech and birch all follow suit.
385
00:42:24,840 --> 00:42:26,880
A spectacle so vast,...
386
00:42:27,560 --> 00:42:29,800
it can be seen from space.
387
00:42:32,760 --> 00:42:34,840
{\n8}New England in the fall is one...
388
00:42:34,840 --> 00:42:37,879
{\n8}of planet Earth's greatest natural wonders.
389
00:42:43,240 --> 00:42:47,320
{\n8}And it happens on our very own doorstep,...
390
00:42:50,720 --> 00:42:55,200
{\n8}on America's spellbinding Atlantic Coast.
28804
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