They are found on every continent except Antarctica. They are found as high as 15,000 feet in the Andes and Himalayas. Strangely enough, even though amphibians evolved from the sea, the great majority cannot survive in sea water. Reptile Gardens exhibits many unusual and colorful amphibians. Snakes have no movable eyelids or external ears.
Snakes are the world's most effective natural control on rodent population.
Most snakes can swallow prey that is 3 times or more their own body diameter. Some crocodiles lie with their mouths open and allow birds to safely pick food particles and parasites from their teeth and gums. An old-world chameleon can move its eyes in different directions at the same time. You can't tell the age of a rattlesnake by counting its rattles because it gets a new rattle each time it sheds its skin, which can occur 1 to 6 times per year. Reports of much longer snakes are pure fantasy.