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How to Stop a Trunk and Start a Tail? The Leg Has the Key

One of the most remarkable anatomical differences among vertebrate bodies is the relative size of their neck, trunk and tail. This can be illustrated by comparing the bodies of a typical snake and of a long tailed lizard. They are both very long and superficially similar. However, most of the snake’s body is a trunk full with organs of the digestive, excretory and reproductive systems, whereas the largest part of the lizard’s body is a muscular tail. Leer más.

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