Shot note on Snakes

Snake

    Snakes are carnivorous reptiles of the suborder serpentes.Also its legless and elongated. Snakes are ectothermic,amniote vertebrates covered in overlapping scales. 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 jaw. Some species retain a pelvic gridle with a pair of vestigial claws on either side of the cloaca. Lizards have evolved elongate bodies with out limbs or with greatly reduced limbs about twenty five times independently via convergent evaluation, leading to many lineages of legless lizards. Legless lizards resemble snake, but several common group of legless lizards have eyelids and external ears, which snakes lack, although this rule is not universal.

Snakes

             Living snakes do not found in Antarctica,Ireland,Green land,New zeland and some islands.
Most species are nonvenomous and those that have venom use it primarily to kill and subdue prey rather than for self-defense. Some possess venom potent enough to cause painful injury or death to humans.And the Nonvenomous Snakes either swallow prey alive or kill by construction. The fossil evidence said that sankes are originated from burrowing lizzards, such as the vavanids during the cretaceous period.

Snakes