Snakes and lizards are reptiles that belong to the order Squamata. They share several traits but differ in one obvious respect: snakes do not have limbs. The two suborders diverged more than 100 million years ago.

The study is part of an effort to understand how changes in the genome lead to changes in phenotypes
[Credit: Jax Strong/WikiCommons]Identification of the genetic factors involved in this loss of limbs is a focus of the…

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Source: archeo