Humans could regrow their own body parts like some amphibians, claim scientists

·Regenerating your own amputated arms and legs, broken spines and even damaged brains is the stuff of superheroes - but it could one day be a reality, claim scientists.
http://www.telegraph.co.uk/scienceandtechnology/science/sciencenews/5710718/Humans-could-regrow-their-own-body-parts-like-some-amphibians-claim-scientists.html

Researchers looking into how salamanders are able to to regrow their damaged bodies have discovered that the "almost magical ability" is closer to human healing than first thought.
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The amphibians are almost unique in that if they lose a limb, a small bump forms over the injury called a blastema. Within about three weeks this blastema transforms into a new, fully functioning replacement limb without any scarring.
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Scientists, studying the Axolotl salamander, native to Mexico, had long thought the amphibious creature's capabilities were down to so-called "pluripotent" cells, which had the uncanny ability to morph into whatever appendage, organ or tissue happens to be needed or due for a replacement.
But a paper in the journal Nature debunks that notion, discovering that the regenerative process is like a much more sophisticated version of healing in humans and other mammals. They found that repairs were down to much more standard stem cells – like those in mammals – but with the ability to reorganise themselves in the correct order to rebuild the body.

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