Hummingbirds' 22-million-year-old history of remarkable change is far from complete
Thursday, April 3, 2014 - 20:31
in Biology & Nature
The first comprehensive map of hummingbirds' 22-million-year-old family tree -- reconstructed based on careful analysis of 284 of the world's 338 known species -- tells a story of rapid and ongoing diversification. The decade-long study also helps to explain how today's hummingbirds came to live where they do.