Three-toed fossil footprints that date back more than 210 million years were pressed into soft mud by bipedal reptiles with feet like a bird’s, a new analysis of the tracks has revealed. The ...

(Reuters) -A new analysis of a pigeon-sized Archaeopteryx fossil in the collection of the Field Museum in Chicago is revealing an array of previously unknown features of the earliest-known bird, ...

The world's largest parrot lived 19 million years ago in New Zealand. Paleontologists have named the 3-foot-tall, 15-pound bird "Squawkzilla." ...

Ancient animals were walking around on bird-like feet over 210 million years ago, according to a new study. Ancient animals were walking around on bird-like feet over 210 million years ago, according ...

Nearly 20 years ago, while repairing a fence on his ranch in Colombia, fossil collector César Perdomo found the middle leg bone of a bird. The 12-million-year-old fossil, known as a tibiotarsus, ...

The fossil of a giant carnivorous bird has been found in Patagonia, marking the largest-known avian skull to have been found. The fearsome fossil of a 10-foot-tall ...

Tens of millions of years ago, a diverse array of bird species soared, swam, and thrived amid their scaly reptile cousins—and ...

Predatory birds that lived at the same time as the dinosaurs may have hunted like today's hawks and owls, suggests new research. New hawk-sized species identified from the same American fossil ...

Around 45 million years ago, a 4.6 feet-tall (1.40 meters) flightless bird called Diatryma roamed the Geiseltal region in southern Saxony-Anhalt. An international team of researchers report on the ...

In the icy wilderness of Antarctica, where glaciers now dominate the landscape, scientists have unearthed a fossil that ...