http://cache.io9.com/assets/base/img/thumbs140x140/io9.com.png http://io9.com/tag/extra limbs http://io9.com/tag/extra limbs

Humans, birds, and other creatures share a set of genes that lead to the development of fingers and other digits (like paws or wings), but the way those digits form has been a mystery. Now a group of researchers in Wisconsin have discovered the secret of digit growth, and perhaps the key to regrowing severed or stunted fingers. It's even possible this research would allow you to grow an extra finger or two. This might make working with your hands easier, or lead to strange biopunk fashions that involve fingers sprouting from your head. More »
]]> http://io9.com/index.php?op=postcommentfeed&postId=366675&view=rss&microfeed=true