Good news for axolotls: a new study shows that they can be successfully translocated to protected and artificial wetlands.

For axolotls, it may take only a couple of days to regrow their tiny hands, but in a fully grown human, that process could take years, McCusker said. “It’s important that we continue to do ...

But wild axolotls, endemic to a single lake in Mexico, are critically endangered due to degradation of their native wetlands, with only 50 to 1,000 individuals left in the wild.

Axolotls, which are aquatic salamanders, biologically control the amount of acid in their limbs to grow the precise amount of a limb lost to injury, Monaghan said.

These glow-in-the-dark axolotls can regrow lost limbs — and scientists say studying them could eventually help humans do the same.