How the salamander regrows an entire limb after injury has flummoxed the wisest of scientists. A closer look at the cells involved in limb regeneration shows that remembering past origins may be crucial for this feat.
Address reprint requests to: Alejandro Sánchez Alvarado
Sánchez Alvarado A. A cellular view of regeneration. Nature. 2009 Jul;460(7251):39—40.
Photo By Esteban Acquaviva
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