Snake

Snakes are elongate, legless, carnivorous reptiles of the suborder Serpentes that can be distinguished from legless lizards by their lack of eyelids and external ears. Like all squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales. Many species of snakes have skulls with many more joints than their lizard ancestors, enabling them to swallow prey much larger than their heads with their highly mobile jaws. To accommodate their narrow bodies, snakes' paired organs (such as kidneys) appear one in front of the other instead of side by side, and most have only one functional lung. Some species retain a pelvic girdle with a pair of vestigial claws on either side of the cloaca.

Living snakes are found on almost every continent (except Antarctica), in the Pacific and Indian Oceans, and on most smaller land masses — exceptions include some large islands, such as Ireland and New Zealand, and many small islands of the Atlantic and central Pacific.[1] More than 20 families are currently recognized, comprising about 500 genera and about 3,400 species. They range in size from the tiny, 10 cm-long thread snake to the Reticulated python of up to 8.7 meters (29 ft) in length. The fossil species Titanoboa cerrejonensis was 15 meters (49 ft) long. Snakes are thought to have evolved from either burrowing or aquatic lizards during the mid-Cretaceous period, and the earliest known fossils date to around 112 Ma ago. The diversity of modern snakes appeared during the Paleocene period (c 66 to 56 Ma ago). The oldest preserved descriptions of snakes can be found in the Brooklyn Papyrus.

 

Green Snake

Yellow Azgar

Water Moccasin Snake

Snake

Stunning Green Snake Mouth

Snakes

Snake in Basket

Rattle Snake

Rat Snake

Red Milk Snake

Green Snake With open Mouth

Magnificent Green Snake

Lovely Python Snake

Green Snake Closeup

Snake On Tree

Gopher Snake

Emerald Boa Snake

Delightful White Snake

Red Snake

Colseup Of Green Snake

Cobra Snake

Coast Garter Snake

Green Snake on Grass

Charming orange Snake

Brown Coiled Snake

Snake In Water

Red And White Snake

Ananconda Snake