Remarkable Limb Regeneration Began 3 Million Years Ago

Friday, September 26, 2014 - 07:10 in Paleontology & Archaeology

Fossilized, primitive amphibians with odd-looking appendages, some with extra toes and deformed shapes, suggest the ability of some vertebrates to regenerate or regrow amputated limbs first evolved at least 300 million years ago.

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