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1 day ago · Reptiles, as commonly defined, are a group of tetrapods with an ectothermic ('cold-blooded') metabolism and amniotic development. Living reptiles comprise four orders: Testudines ( turtles ), Crocodilia ( crocodilians ), Squamata ( lizards and snakes ), and Rhynchocephalia (the tuatara ).
May 10, 2024 · Learn about lizards, the diverse group of reptiles with legs, eyelids, and external ears. Find out how lizards vary in size, shape, habitat, diet, and behavior, and how some are related to snakes and mosasaurs.
May 10, 2024 · Learn about the amazing reptiles, their characteristics, types, and adaptations. Discover the fascinating diversity and evolution of these ancient creatures that have been roaming the Earth for millions of years.
May 29, 2024 · reptile. Also known as: Serpentes, serpent. Written by. James A. Peters. Curator and Supervisor, Division of Reptiles and Amphibians, National Museum of Natural History, Smithsonian Institution, Washington, D.C., 1966–72. Specialist on the taxonomy of snakes. Author of Dictionary... James A. Peters, Van Wallach.
2 days ago · 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.
May 27, 2024 · A reptile is cold-blooded and breathes air. It also has scales instead of feathers or hair. And most lay soft-shelled eggs on land. Reptiles have four limbs, except for snakes. However, snakes still descended from four-limbed ancestors.
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May 30, 2024 · Reptiles are a class of vertebrate animals that share similar characteristics such as scaly skin, cold-bloodedness, and the ability to lay eggs. They are found in all regions of the world except for the polar and tundra regions, those of extremely low temperatures.
