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23 de abr. de 2024 · turtle, (order Testudines), any reptile with a body encased in a bony shell, including tortoises. Although numerous animals, from invertebrates to mammals, have evolved shells, none has an architecture like that of turtles. The turtle shell has a top ( carapace) and a bottom ( plastron ).
Turtles, or testudines, are reptiles of the order Testudines, characterized by a special shell developed mainly from their ribs. Modern turtles are divided into two major groups, the Pleurodira (side necked turtles) and Cryptodira (hidden necked turtles), which differ in the way the head retracts.
Facts. For more than 100 million years sea turtles have covered vast distances across the world's oceans, filling a vital role in the balance of marine habitats. EN Status. Endangered. Scientific Name. Cheloniidae and Dermochelyidae families. Length. 2-6 ft. Habitats. Open water and coasts. © WWF-US / Keith Arnold.
Everything you should know about the Turtle. The Turtle is an aquatic reptile that lives inside its shell. Some turtles live in the water, some venture out.
15 de feb. de 2019 · 23.1M subscribers. 15K. 2.3M views 5 years ago #NationalGeographic #Educational #SeaTurtles. Sea turtles have existed since the time of the dinosaurs. Find out about the ancient mariners'...
Six of the seven species of sea turtles that swim the planet’s waters— leatherback, loggerhead, Kemp’s ridley, green, olive ridley, and hawksbill —are found in every ocean except the Arctic and...
turtle, Any of approximately 300 species (order Testudines) of reptiles that have a bony shell overlaid with horny shields and are found in most parts of the world. Turtles have existed for 200 million years, making them the oldest of all surviving reptiles. Most species are aquatic or semiaquatic; some are terrestrial.
