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The Turtles Portal (Wikipedia)
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turtle : any of an order (Testudines synonym Chelonia) of terrestrial, freshwater, and marine reptiles that have a toothless horny beak and a shell of bony dermal plates usually covered with horny shields enclosing the trunk and into which the head, limbs, and tail usually may be withdrawn — Webster
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Turtles are reptiles of the order Testudines (or Chelonii) characterised by a special bony or cartilaginous shell developed from their ribs and acting as a shield. The order Testudines includes both extant (living) and extinct species. The earliest known members of this group date from 157 million years ago, making turtles one of the oldest reptile groups and a more ancient group than snakes or crocodilians. Of the 327 known species alive today, some are highly endangered.
Turtles are ectotherms—animals commonly called cold-blooded—meaning that their internal temperature varies according to the ambient environment. However, because of their high metabolic rate, leatherback sea turtles have a body temperature that is noticeably higher than that of the surrounding water.
Turtles are classified as amniotes, along with other reptiles, birds, and mammals. Like other amniotes, turtles breathe air and do not lay eggs underwater, although many species live in or around water. — Wikipedia
Introduction
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Swimming with turtles at Sipadan, Borneo (Tim Ecott, Wonderlust)
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How Do Sea Turtles Find the Exact Beach Where They Were Born? (Carrie Arnold, National Geographic)
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The survival of the sea turtle (Scott Gass, TED-Ed)
Information About Sea Turtles, Their Habitats and Threats to Their Survival (Sea Turtle Conservancy)
Sea Turtle (Wikipedia)
Kemp’s Ridley Sea Turtle (Sea Turtle Conservancy)
Kemp’s Ridley Sea Turtle (Wikipedia)
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An ancestral turtle from the Late Triassic of southwestern China (Chun Li, et al., Nature)
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Phys.org - latest science and technology news stories Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.
- California OKs new protections for leatherback...on October 15, 2021 at 9:07 pm
California has added the Pacific leatherback sea turtle to its endangered species list, guaranteeing more protections for a rapidly dwindling population.
- Which plants and animals are affected by climate...on October 14, 2021 at 11:45 am
We've all seen the picture of the polar bear perched precariously on a melting iceberg. It's the obligatory poster child for any discussion about species that are endangered by climate change. It isn't alone, of course. To commandeer a clickbait cliché, you'll be amazed to hear about some of the plants and animals—from household names to virtual unknowns—that could be consigned to the history books by global heating. Here are just a handful of the many species that Fauna & Flora […]
- Molecular-level study finds green sea turtles...on October 12, 2021 at 3:47 pm
Juvenile green sea turtles (Chelonian mydas) living in nearshore waters often exhibit tumors that grow on their soft tissues and shells, symptoms of a disease called Green Turtle Fibropapillomatosis. While the disease has been linked to a virus called chelonid alpha-herpesvirus 5, the virus has co-existed within turtle populations for more than 300 million years, although the disease itself has become pandemic only in the last century. The virus can be found in clinically healthy turtles that […]
- Marine researchers focus on the tiniest victims...on October 11, 2021 at 6:30 pm
Until now, the story of the worst Southern California oil spill in decades has been told by gut-wrenching images oil-soaked birds, dying fish and fouled wetlands. However, these images reveal just part of the story, researchers say.
- It's lights out for moths, if you like your...on October 7, 2021 at 1:11 pm
The world at night is never truly dark anymore, but rather lit up with the light of many fake suns.