Dinosaurs are the extinct relatives of birds that roamed the lands and seas of ancient Earth. They first appeared around 240 ...

The Archaeopteryx, a bird-like dinosaur that scientists describe as more reptilian-like than modern birds, were about the size of a crow. More: What lies at the center of the Earth? The answer ...

A fossil from China that's 150 million years old may be the world's earliest known bird. The discovery shows that the short tails characteristic of modern birds evolved much earlier than ...

It discusses the similarities between birds and reptiles, particularly the evolutionary link to ancient species like Archaeopteryx. Key features of birds, such as their lightweight skeletons ...

Scientists now know that dinosaurs evolved bird-like characteristics long before the appearance of Archaeopteryx – the Late Jurassic fossil sometimes referred to as the earliest bird. Left, a painting ...

Ryan Carney, University of South Florida One of the most remarkable fossils of the birdlike dinosaur Archaeopteryx, known as the Thermopolis specimen, has bones that are preserved in three ...

Archaeopteryx's strong ankles probably served as shock absorbers during landings. The bones comprising them were relatively long compared to those of related dinosaurs, and they were partially ...

Dinosaurs were hugely successful during their ... who used it to virtually slice through Archaeopteryx fossils and trace out the cross sections of the bones in exacting detail.

D modeling reveals that as bird brains grew larger, it led to changes in jaw muscles and joint mechanics—enabling the ...