Alligators & Crocodiles
Alligators and Crocodiles are reptilian relatives but are distinguished by the width of the snout. Alligators have fatter, rounder snouts than crocodiles. See more »
what's inside: reptiles
Reptiles are cold-blooded vertebrates that have scales layered over their skin. Common reptiles include lizards, snakes, alligators and crocodiles.
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Lizards
Lizards usually have a small head, a short neck and a long tail. There are more than 4,600 species of lizards including iguanas, chameleons, geckos and gila monsters, among others. See more »
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Snakes
Snakes have a long, flexible body that is covered with dry scales. Snakes flick their forked tongues to bring in odors to their sensory glands. See more »
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Turtles
Reptiles are beautiful creatures that have evolved since the beginning of time. Check out these articles about all kinds of unique reptiles. See more »
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Pit Viper
Pit Viper, a poisonous snake with a deep pit on each side of the head, between the eye and the nostril.
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videos: reptiles
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How Alligators Work
Alligators are amazing animals that have been around for millions of years. These fearsome creatures are expert predators at the top of the food chain.
Hognose Snake
Hognose Snake, a nonpoisonous snake of North America that is harmless to humans. It is also called the puff adder because it flattens its head and neck, inflates its body with air, and hisses loudly when disturbed.
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