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See text for extinct groups. 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 ).
Jun 12, 2024 · A reptile is any member of the class Reptilia, the group of air-breathing vertebrates that have internal fertilization, amniotic development, and epidermal scales covering part or all of their body. The major groups of living reptiles are turtles, tuatara, lizards, snakes, and crocodiles.
About Reptiles. Reptiles are air-breathing vertebrates covered in special skin made up of scales, bony plates, or a combination of both. They include crocodiles, snakes, lizards, turtles, and...
Mar 2, 2024 · What Is a Reptile? Definition. Reptiles are cold-blooded, scaly vertebrates that belong to the class Reptilia. They are distinguished from other vertebrates by specific physical and physiological traits. While mammals and birds are warm-blooded, reptiles rely on external sources to regulate their body temperature.
Sep 13, 2021 · The class Reptilia contains four orders: Crocodylia (crocodiles, alligators, caimans and gharials) Rhynchocephalia (the tuatara) Squamata (snakes, lizards and worm lizards) Testudines (turtles and tortoises, etc.) Examples of reptiles from all four orders are included in the following list of reptiles.
Sep 29, 2023 · Reptile: Directed by Grant Singer. With Benicio Del Toro, Justin Timberlake, Eric Bogosian, Alicia Silverstone. Tom Nichols is a hardened New England detective, unflinching in his pursuit of a case where nothing is as it seems and it begins to dismantle the illusions in his own life.
reptile, Any of the approximately 8,700 species of the class Reptilia, the group of air-breathing vertebrates that have internal fertilization and a scaly body and are cold-blooded. Most species have short legs (or none) and long tails, and most lay eggs.
Reptiles are cold-blooded vertebrates. (Vertebrates have backbones.) They have dry skin covered with scales or bony plates and usually lay soft-shelled eggs.
Apr 13, 2018 · Everything you need to know about living and extinct reptiles. reptile evolution, life cycle, modern reptile types. Are birds reptiles? Crocodiles, turtles, snakes, lizards, tuataras, classification, Mesozoic Era, dinosaurs and much more ...
Reptiles are a class of vertebrates made up mostly of snakes, turtles, lizards, and crocodilians. These animals are most easily recognized by their dry, scaly skin. Almost all reptiles are cold-blooded, and most lay eggs—though some, like the boa constrictor, give birth to live young.
