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Reptiles and mammals are animals that breathe air through the use of lungs. They are also vertebrates, which means they have backbones, and they are both descended from labyrinthodonts, large, extinct, freshwater amphibi... More »

Alligators are predators, eating fish, birds, mammals, mollusks and other reptiles. They consume prey of increasingly larger size as they grow from juveniles to adults. Although their diet is primarily flesh-based, allig... More »

Some characteristics all reptiles have in common are that they have scales, lungs and backbones or vertebrae. Reptiles are also ectothermic. Although most reptiles lay eggs, there are some that have live birth, such as b... More »

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Although most reptiles lay eggs, some reptiles retain the eggs, and the young are hatched inside the mother's body. Others are completely live-bearing, and no hatching is involved at all. More »

Examples of the Reptilia, or reptiles, include common garter snakes, chameleons, saltwater crocodiles, tuataras and Galapagos tortoises. There are about 9,500 species in the Reptilia family, the earliest of which evolved... More »

The main difference between reptiles and critters is the type of animal being referred to. Reptiles are cold-blooded animals such as snakes, turtles or lizards. The word "critters," on the other hand, is a slang term oft... More »

Some reptile species, such as many snakes and lizards, ambush prey that wanders too close, whereas other reptiles are prowlers that search far and wide for prey. Some reptiles even graze grasses and forage over long peri... More »