Aided by stem cells, a lizard regenerates a perfect tail for the first time in 250 million years

PHYSorg
Oct 14, 2021, 9:00 am100 pts
Lizards can regrow severed tails, making them the closest relative to humans that can regenerate a lost appendage. But in lieu of the original tail that includes a spinal column and nerves, the replacement structure is an imperfect cartilage tube. Now, for the first time, a USC-led study in Nature…

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