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 ...

(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, ...

Scans of the most well-preserved fossil of a prehistoric flying reptile with intact feathers have revealed how the first birds managed to fly while their non-bird dinosaur cousins could not. The ...

Scientists with the Field Museum of Chicago have discovered that a pigeon-sized Archaeopteryx fossil in its collection displays an array of features previously unknown when it comes to the earliest ...

The identification of part of the fossilized remains of a so-called "terror bird" species in South America has given researchers new insight into the apex predators ...

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 ...

Archaeopteryx is the fossil that proved Darwin right. It's the oldest known fossil bird, and it helps show that all birds— including the ones alive today—are dinosaurs. And while the first ...

An artist’s depiction of ancient albatrosses harassing a pelagornithid — with its fearsome toothed beak — as penguins frolic in the oceans around Antarctica 50 million years ago. UC Berkeley Twitter ...

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

The end of a terror bird’s left tibiotarsus, a lower leg bone in birds equivalent to that of a human tibia or shin bone, dates back to the Miocene epoch around 12 ...

The three fossil specimens (from left to right), Avisaurus darwini, Avisaurus sp., and Magnusavis ekalakaensis, all of which are represented by a tarsometatarsus. They are all shown to scale with one ...