Chopped: How Amputated Fingertips Sometimes Grow Back
Since the 1970s, doctors around the world have reported cases in which young kids regrow fingertips if an accident leaves some of the fingernail. Now scientists have figured out how this lizard-like regeneration happens in mice and suspect the same mechanism works in young humans.READ MORE
![variables.usNews.image[1].caption.$text](http://media.npr.org/assets/img/2013/04/26/mugrippercatheter_wide-b81988c3b2f406e6882768e38a7f98b1d8445a7e.jpg?s=11)
![variables.usNews.image[1].caption.$text](http://media.npr.org/assets/img/2013/04/25/head-114b5862afbd8c77068bb7366d4800aaa7b9bbbc.jpg?s=11)
![variables.usNews.image[1].caption.$text](http://media.npr.org/assets/img/2013/04/18/mango2-bd95e3f759a4792ff0be65dcc3cb19917dbf915e.jpg?s=11)
![variables.usNews.image[1].caption.$text](http://media.npr.org/assets/img/2013/04/11/50924499-dfe866ce8063ab41d1138a2553db4f4f1c940cf1.jpg?s=11)
![variables.usNews.image[1].caption.$text](http://media.npr.org/assets/img/2013/04/02/samoa-1929435330d36f07dcd7d84f0905988b13a26669.jpg?s=11)
![variables.usNews.image[1].caption.$text](http://media.npr.org/assets/img/2013/03/25/istock_000001376887small_wide-ffe960edabdf182e5e1f1e80d6615765594b50be.jpg?s=11)
![variables.usNews.image[1].caption.$text](http://media.npr.org/assets/img/2013/03/22/rick-santorum-55d84c50cc7667e7154cfa39ca1befe5ca95e210.jpg?s=11)
![variables.usNews.image[1].caption.$text](http://media.npr.org/assets/img/2013/03/22/156690028_custom-8889ae82313fe414192024efd532ca8eff7155af.jpg?s=11)
![variables.usNews.image[1].caption.$text](http://media.npr.org/assets/img/2013/03/20/msnose2toned-e43f21d69fd5ca905c152eccf4e7e0f3e6469591.jpg?s=11)
