Snakes, belonging to the suborder Serpentes, are common in many parts of the world. From really small ones, to big ones, venomous or nonvenomous, snakes are not a joy for anyone that sees them. Although most of them prefer to avoid contact with humans, they can react if they are startled or injured.
Snakes are elongated, legless, carnivorous reptiles of the suborder Serpentes that can be distinguished from legless lizards by their lack of eyelids and external ears. They are believed to have evolved from lizards (burrowing or aquatic), sometime around the Jurassic period. Currently, there are more than 20 recognized families of snakes, which include around 500 genera and 3,400 species. With
Snakes are elongated, legless, carnivorous reptiles of the suborder Serpentes. Many species of snakes have skulls with several more joints than their lizard ancestors, enabling them to swallow prey much larger than their heads with their highly mobile jaws. Living snakes are found on every continent except Antarctica. More than 20 families are currently recognised, comprising about 500 genera and about 3,400 species. Most species are nonvenomous and those that have venom use it primarily to kill and subdue prey rather than for self-defence. Some possess venom potent enough to cause painful injury or death to humans. Nonvenomous snakes either swallow prey alive or kill by constriction.