Παρασκευή, 21 Οκτωβρίου 2016

Snakes Used to Have Legs and Arms … Until These Mutations Happened

The ancestors of today's slithery snakes once sported full-fledged arms and legs, but genetic mutations caused the reptiles to lose all four of their limbs about 150 million years ago, according to two new studies.

via Live Science http://ift.tt/2eeAlVI

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