![](https://webarchive.library.unt.edu/dentonfracking/20141206004021im_/http://media.npr.org/assets/img/2014/12/02/rottenfruit-51b11b5f9cffa700d6859edcc691ec1658dae0a2-s500-c15.jpg)
Rotten, fermented fruit has some nutritional value, and may have looked pretty good to our hungry ancient ancestors. Evolving the ability to metabolize the alcohol in fermented fruit may have helped us adapt to a changing climate 10 million years ago, research suggests.iStockphoto hide caption