The axolotl is a type of salamander. It has a long tail, flat head, and four lizard-like limbs, which it uses to move around the lake floor. But unlike other salamanders, axolotls are neotenic ...

On the outskirts of Mexico City, biologists are working to reintroduce a treasured amphibian to the wild. But first they must revive an ancient method of farming.

Axolotls are sometimes called the ‘Peter Pan of amphibians’ since they do not go through a traditional metamorphosis and keep larval traits like their signature gills.

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.

Scientists in Mexico are worried about the future of the endangered animal, and hope the programme will raise lots of money to help the species recover.