Professor Emily Jane McTavish and colleagues at the Cornell Lab of Ornithology have mapped the evolution of every known bird species. They created a complete evolutionary tree of bird species by ...

ELEC copy purchased with funds from the S. Dillon Ripley Endowment. Birds catch the public imagination like no other group of animals; in addition, birders are perhaps the largest non-professional ...

Imagine zooming out on a giant family tree that includes every bird you have ever seen. Ostriches sprint across open plains, hummingbirds hover at flowers, penguins slice through cold seas, and eagles ...