Scientists Discover Link Between Fins and Hands
![](https://media.wnyc.org/i/800/0/c/85/1/18ZIMMER-superJumbo.jpg)
A composite image of a mouse hand and a fish fin, each labeled with the same molecular markers.
( Marie Kmita, Andrew Gehrke and Shubin Lab )
( Marie Kmita, Andrew Gehrke and Shubin Lab )