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Scientists Regrow Chicken Wing 124

An anonymous reader writes "Unlike salamanders and lizards, most animals have lost the ability to replace missing limbs. But a research team in San Diego has been able to regenerate a wing in a chick embryo — a species not known to be able to regrow limbs — suggesting the potential for such regeneration exists innately in all vertebrates, including humans." From the article: "Manipulating Wnt signaling in humans is, of course, not possible at this point, Belmonte says, but hopes that these findings may eventually offer insights into current research examining the ability of stem cells to build new human body tissues and parts. For example, he said Wnt signaling may push mature cells go back in time and 'dedifferentiate' into stem-like cells, in order to be able to then differentiate once more, producing all of the different tissues needed to build a limb."

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