Biology, 02.08.2019 04:20, emilyturchon

It does not seem particularly surprising to us that we might find gill pouches, tails, or other such structures in humans. but we would be very surprised if we found hair, nipples or middle ear bones in fish, amphibians or reptiles. why?

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It does not seem particularly surprising to us that we might find gill pouches, tails, or other such...