The serpent, commonly known as a snake, is a legless reptile belonging to the suborder Serpentes. Snakes are found on every continent except Antarctica and inhabit a variety of environments, including forests, deserts, and oceans. They are known for their elongated bodies and flexible jaws, which allow them to consume prey larger than their head. Snakes are carnivorous and primarily feed on small animals, such as rodents, birds, and frogs. They use various methods to capture their prey, including constriction and venom. Many species are non-venomous, while others, like the cobra and rattlesnake, possess venom that can be harmful to humans.