Some lucky birds escaped dino doomsday

Feathers, wishbones and more were a dino thing before they were a bird thing

ancient bird

EARLY BIRDS  Birds diversified throughout the age of the dinosaurs, but only one lineage survived. 

Utako Kikutani

The asteroid strike (or was it the roiling volcanoes?) that triggered dino doomsday 66 million years ago also brought an avian apocalypse.