The Axoloti Mexicana (aka walking fish) is an amphibian that is capable of amazing regeneration. Once a food staple of the Incas it is now an endangered species. Scientists have managed to breed and study this salamander in a lab for about 150 years. It is an unusual species because it spends most of its life in a laval stage much like a tadpole but never evolving further. Studies have shown that it has the ability to regrow limbs, bones, muscles, nerves and organs. It can heal cuts without leaving a scar. In fact it is the only animal that can actually regrow a spinal cord after it has been damaged. In studying this amphibian scientists have been able to identify the genes involved in regeneration. The possibilities of how it would benefit humans would be astounding.