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plates usually covered with horny shields enclosing the trunk and into which the head, limbs, and tail usually may be withdrawn — Webster
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
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- Sea turtle success stories along African east...on May 13, 2022 at 7:43 am
Conservation of sea turtles along much of Africa's east coast has made good progress in recent decades—but tens of thousands of turtles still die each year due to human activity, researchers say.
- Peru 'pinger' trial deters dolphins but not whaleson May 12, 2022 at 2:26 pm
A trial of underwater sound devices called pingers reduced the number of dolphins caught in fishing nets—but did not deter humpback whales.
- Long-lost 'bum-breathing' turtle makes its returnon May 11, 2022 at 2:52 pm
A revolutionary new DNA detection method has helped rediscover an iconic species of turtle last seen more than 25 years ago in a northern Queensland river.
- Hawksbill turtles have relatively crude...on May 11, 2022 at 2:00 pm
A small international team of researchers has found that hawksbill turtles take a circuitous route during migration, suggesting they have relatively crude navigational skills. In their paper published in Journal of the Royal Society Interface, the group describes tagging multiple turtle specimens and tracking their movements to better understand their navigational skills.
- Floods, new mystery disease impact starving...on May 3, 2022 at 4:45 pm
University of the Sunshine Coast researchers and wildlife rescuers have joined forces as they deal with a large increase in stranded, sick, and deceased marine turtles from recent floods and the discovery of a mystery disorder that is eating away at turtle shells.
Here are links to pages about closely related subjects.
Life Cell, Gene, Tree of Life
Plant Flower, Tree
Invertebrate Cuttlefish, Octopus, Ant, Bee, Butterfly, Spider, Lobster
Vertebrate Fish, Seahorse, Ray, Shark, Frog, Turtle, Tortoise, Dinosaur
Bird, Ostrich, Owl, Crow, Parrot
Mammal Bat, Rabbit, Giraffe, Camel, Horse, Elephant, Mammoth
Whale, Dolphin, Walrus, Seal, Polar Bear, Bear, Cat, Tiger, Lion, Dog, Wolf
Monkey, Chimpanzee, Human