Cottonmouths (Agkistrodon piscivorus), or water moccasins, are venomous snakes found in the southeastern United States. They're called cottonmouths because the insides of their mouths, which they ...

How big they are: Can range from 4 inches (10 centimeters) to over 30 feet (9 meters) There are about 4,000 different snake species in the world today. They occupy a wide range of habitats — some ...

Ophidiophobia (the phobia of snakes) is one of the more common phobias psychologists treat today. Some researchers posit that this is an evolutionary response and that humans are wary of snakes ...

There are about 4,000 different snake species in the world today. They occupy a wide range of habitats — some dwell underground while others live high in the canopies of trees, and many spend their ...