Gene found that controls beak size in Darwin’s finches
Drought survivors reveal molecular details of famous evolution story
![Geospiza fortis](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2016/04/042116-ti_finch_free.jpg?fit=860%2C460&ssl=1)
FAMOUS FINCH Medium ground finches (Geospiza fortis, shown) underwent a shift from big beaks to small ones following a drought. Most of that shift was traced to big- and small-beak variants of a gene called HMGA2.
P.R. Grant