Many different types of animals were able to regenerate missing tissues. For example star fishes are able to regenerate them selves if they lost it's part of the body. People always wondered how they regenerate tissue. After a long research on flat worms, they were able to found that they regenerate from a single pluripotent cell type. This cell is thought it able to regenerate the whole body of the animal. This can be compared to stemcells but this is able to regenerate the whole body.
Scientists found out this unique cells that is able to regenerate the whole body. With this information, we might be able to implant this or something like this to humans giving the ability to regenerate. This is still very new and unkown, but this knowledge is one step closer to regeneration. If we Are able to use this knowledge to help humans, it will change the world. Of course, this should be researched a lot more before doing anything big.
http://www.sciencedaily.com/releases/2011/05/110512150727.htm
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