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Gene-edited stem cells help geckos regrow more perfect tails

Experiments coaxed the geckos to regrow tails with some nerve tissue and bonelike cartilage

Mourning gecko

Mourning geckos (one shown) are an all-female species of lizard capable of regrowing their tails.

Brian Gratwicke/Flickr (CC BY 4.0)

By Freda Kreier

- More than 2 years ago

Regenerating body parts is never easy. For instance, some lizards can grow back their tails, but these new appendages are pale imitations of the original.