Sea Turtle Week is June 16-20, but, hey, you already knew that. To celebrate these wide-ranging swimmers, we take a look at their journey from beach to sea -- and back again. Green turtles (above) are the largest of the hard-shell sea turtles, despite having a small head, and can weigh up to 350 pounds (135-160 kilograms). They can grow to 3 feet in length.30 Days Of The Ocean: Photos
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Every morning during the nesting season for green and loggerhead turtles, ecologists from Israel's Nature and Parks Authority search the Mediterranean coastline for nests. They empty the nests and transplant the fragile eggs to protected hatcheries along the coast. Two months later, removed from man-made obstacles and protected from their natural predators -- crabs, foxes and birds -- the hatchlings enter the sea. Some will return more than 20 years later to the same beach and lay their eggs.PHOTOS: The Surprising World of Sea Squirts
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A loggerhead turtle hatchling races for the Mediterranean Sea after leaving a protected hatchery in Mikhmoret, north of Netanya, Israel.PHOTOS: Sharks, Marine Mammals Hang in Paradise
Once they hit the water, hatchlings must swim quickly to escape near-shore predators. And curious humans.VIDEO: Octopi Have a Brain in Every Tentacle
Although sea turtles live most of their lives in the ocean, adult females must return to beaches to lay their eggs.PHOTOS: Life in Australia's Great Barrier Reef
This map shows the Hawksbill turtles' migration range. The turtles are capable of traveling hundreds to thousands of miles between nesting beaches and foraging areas, which are comparable to migrations of green and loggerhead turtles.NEWS: Strange, Carnivorous Sponge Found In Deep Sea
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Members of the Kuwait Environment Protection Society get ready to release a green sea turtle. The turtle, 45 years old and weighing 150 kilograms, was rescued from a fishing trap and released after undergoing medical attention. A tracking device was fixed on the turtle's back in order to help study the animal's movement in territorial waters.PHOTOS: Life On The Ocean Floor Garbage Patch
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At the Miami Seaquarium, kids get a chance to touch one of two loggerhead sea turtles that are prepared to be released back into the wild at Bill Baggs Cape Florida State Park after undergoing rehabilitation.NEWS: Huge North Sea Plankton Bloom Seen From Space
There are seven worldwide species of sea turtle, with six of those found in the United States. Sea turtles are protected under the Endangered Species Act, due to threats from marine debris, bycatch, destruction of their habitat and boat strikes.PHOTOS: Lost Years Of Sea Turtles Uncovered
March 19 was a big day for celebrity giant tortoise Jonathan, at 184 years old considered the oldest living land animal. That was the day he experienced something new: a bath.
The video below tells the story, from Jonathan’s handlers at Plantation House on Saint Helena Island in the South Atlantic. The giant tortoise has lived on the island since 1882, arriving there at age 50. He shares his Plantation House address with another Saint Helena big name –- the island’s governor.
Jonathan’s age is essentially everyone’s best guess, based on the available evidence.
His veterinarian Joe Hollins — seen in this video doing his best to scrub the fidgety tortoise — told sainthelenaisland.info in 2015: “We have a record that he was landed in 1882 fully grown. We are told that fully grown is at least 50 years of age, and so this is how we extrapolate back to a hatching date of 1832, and forward to a current age of 183. Life expectancy is 150.”
The freshly cleaned up animal is a Seychelles giant tortoise. Now blind from cataracts and unable to smell anymore, he is hand-fed by Hollins, who said in December 2015 that the wise old animal was “alive and well.”
Every day forward is gravy for the ancient animal, it seems.
“There is a chance that he’ll either drop dead tomorrow or live until he’s 250 and see us all off,” said Hollins.