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  • SEA TURTLES ARE ENDANGERED OR THREATENED IN NEARLY EVERY OCEAN BASIN OF THE WORLD. THEY

  • SPEND MOST OF THEIR LIVES AT SEA. BUT LITTLE IS KNOWN ABOUT THE YEARS BETWEEN WHEN

  • THEY HATCH AND REACH FULL MATURITY.

  • A NEW STUDY MAY HELP UNLOCK THIS MYSTERY. I SAT DOWN WITH VOA'S ROSEANNE SKIRBLE TO

  • TALK ABOUT THE LATEST RESEARCH, AND HOW IT MAY HELP SCIENTISTS BETTER UNDERSTAND WHAT

  • SEA TURTLES NEED

  • TO SURVIVE.

  • THEY DID A LOT OF TESTING AND IT HAD TO BE JUST RIGHT. AND SO WHAT THEY DID IS THEY GLUED

  • ON THESE TAGS, AND HOW DID THEY DO THAT? THEY EXPERIMENTED AND FINALLY THEY

  • FIGURED OUT-- THE SHALLOW THE TURTLE IS THE SAME AS WHAT YOUR NAILS ARE MADE OF - SO THE

  • GLUE ARE THE ACRYLIC FOR WHAT YOU USE TO PUT YOUR FAKE NAILS ON IS THE SAME THING

  • THEY USE TO KEEP THESE LITTLE TAGS ON.

  • THAT IS TOO FUNNY. VERY INTERESTING. NOW WHAT DID WE FIND OUT FROM THE STUDY ABOUT THE TURTLES

  • AND THEIR LIFECYCLE?

  • WELL ONCE THEY GOT INTO THE OCEAN, THEY FOLLOW THEM BETWEEN 20 AND 220 DAYS - 27 TO 220 DAYS

  • TO BE EXACT. AND WITH A SAW IS THEY BASICALLY WENT IN A CIRCULAR YOU KNOW ROUND

  • AND ROUND AND ROUND THE ATLANTIC FROM THE TIP OF FLORIDA TO THE EASTERN UNITED STATES.

  • SOME 4300 KM THAT THESE LITTLE GUYS WENT. THEY FOUND OUT THAT THEY DIDN'T KIND OF

  • STAY WITHIN THESE BASIC CURRENTS. THEY WENT INSIDE THE CURRENTS TO WHAT THEY CALL THE

  • SARGASSO SEA.

  • THE SARGASSO SEA TURNS OUT TO BE A POPULAR REFUGE WHERE YOUNG TURTLES CAN FORAGE AND

  • FIND SHELTER IN THE MATS OF SEAWEED. MANSFIELD SAYS IDENTIFYING CRITICAL HABITATS LIKE

  • THE SARGASSO SEA IS AN IMPORTANT STEP FOR WILDLIFE PROTECTION.

  • "PERHAPS THIS HABITAT, EVEN THOUGH IT IS VERY TRANSIENT AND IT MOVES AND DRIFTS WITH OCEAN

  • CURRENTS, IT IS SOMETHING THAT WE NEED TO CONSIDER AS PROTECTION FOR THE

  • ANIMALS."

  • AND YOU TALK ABOUT THIS IDEA OF PROTECTION AND WE KNOW THESE TURTLES ARE ENDANGERED SO

  • WHAT ARE SOME OF THE THREATS THAT THEY FACE?

  • WELL THE LARGEST THREAT IS THE THREAT OF THE LOSS OF HABITAT. BOTH ON LAND AND APPARENTLY

  • ON SEA. THE SARGASSO SEA IS A NEW... THE SCIENTIST DIDN'T QUITE KNOW THEY WERE GOING

  • - OR THEY COULDN'T PROVE THAT THEY WERE GOING THERE. SO IF CONSERVATIONIST CAN THINK OF

  • THIS AS ANOTHER PLACE TO PROTECT THE TURTLES AND PERHAPS THE TURTLES CAN HAVE A

  • LONGER LIFESPAN.

  • OF COURSE AND WHAT IS THERE FULL LIFESPAN? YOU SAID 20 TO 30 YEARS IS WHEN THEY MATURE

  • BUT DO WE KNOW HOW LONG THEY CAN LIVE?

  • WELL I THINK THEY CAN OUTLIVE HUMANS FOR SURE NOW THAT THEY'VE GOT THIS TAG PROBLEM FIGURED

  • OUT, THEY WANT TO FIGURE OUT WELL HOW CAN THEY HAVE THIS TEXT TO GOING EVEN

  • LONGER. NOW REMEMBER THE TURTLE IS GROWING AND GROWING AND GROWING UNTIL IT GETS TO BE

  • ABOUT 1 1/2 M WHEN IT FINALLY GETS BACK TO....

  • WOW, IT'S A BIG DIFFERENCE FROM A LITTLE PALM OF YOUR HAND.

  • PALM OF YOUR HAND TO 1 1/2 M WHEN HE GETS BACK TO MATE AND LAY ITS EGGS. AND THEY ALWAYS

  • BASICALLY COME BACK TO THE SAME SPOT. THE VIDEO THAT YOU'RE LOOKING AT IS VIDEO

  • FROM BRAZIL WITH THE SCIENTISTS ARE NOW WORKING.

  • RIGHT, BECAUSE THEY'RE MOVING ON.

  • THEIR MOVING ONTO OTHER OCEAN BASINS BECAUSE THE TURTLES ARE NOT JUST ENDANGERED ON THE

  • EAST COAST OF UNITED STATES. THIS IS A WORLDWIDE PROBLEM.

  • AND OUR THANKS TO ROSANNE SKIRBLE. WE WANT TO ADD THAT BECAUSE THESE TURTLES' TRACKING

  • DEVICES ARE SOLAR POWERED, THEY ARE ALSO SMALLER ... MEANING THE RESEARCHERS COULD

  • PUT THEM ON THEM ON THE BACKS OF MUCH YOUNGER, SMALLER TURTLES, WHICH ENABLED THIS STUDY

  • TO HAPPEN.

  • AMAZING.

SEA TURTLES ARE ENDANGERED OR THREATENED IN NEARLY EVERY OCEAN BASIN OF THE WORLD. THEY

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B1 中級

揭祕海龜的 "失落的歲月"(VOA任務中... (Sea Turtles' 'Lost Years' Uncovered (VOA On Assignment...)

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    richardwang 發佈於 2021 年 01 月 14 日
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