Snakes are elongate, legless, carnivorous reptiles of the suborder Serpentes that can be distinguished from legless lizards 의해 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 더 많이 joints than their 도마뱀 ancestors, enabling them to 제비, 삼키기 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 의해 side, and most have only one functional...
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