Scientists discover oldest fossil of modern bird, call it 'Wonderchicken'

Researchers have identified the oldest known fossil of a modern bird, dating back to 66.7 million years ago. Called 'Wonderchicken', the fossil includes an almost-complete skull and dates from less than a million years before the asteroid impact that eliminated all large dinosaurs. Its detailed analysis suggests Wonderchicken is close to the last common ancestor of modern chickens and ducks.