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Reptilian hearts, largely similar to amphibian hearts, are three-chambered and provide moderate separation of oxygenated and deoxygenated blood with their two atria, one which receives oxygenated blood and one which rece... More »

www.reference.com Pets & Animals Reptiles

Among the adaptations reptiles have made to live on land is the ability to lay eggs on land. This is in contrast to amphibians, who lay their eggs in a watery medium. Reptile eggs often have leathery shells, which keeps ... More »

www.reference.com Pets & Animals Amphibians

There are about 200 species of tortoises that live around the world, but all tortoises have certain features that set them apart from turtles and other reptiles. More »

www.reference.com Pets & Animals Pets Pet Reptiles
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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 »

www.reference.com Pets & Animals Reptiles

Cold blooded does not mean reptiles have cold blood. They are, however, referred to as “cold-blooded” animals because of how they regulate their body temperatures through a process called thermoregulation. More »

www.reference.com Pets & Animals Reptiles

Reptiles Magazine is the world's leading publication about reptiles. A magazine version is available to people who are interested in reptiles, and there is a website version that displays information on different reptile... More »

www.reference.com Pets & Animals Reptiles

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 »

www.reference.com Pets & Animals Reptiles