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 ...

Our earliest mammalian ancestors avoided the dominant dinosaurs by only coming out at night and having uniformly dark, grey-brown fur for camouflage.

With its four wings and a long, bony tail, Microraptor was unlike any bird alive today. This is because it was a dinosaur—one that evolved long after the first known bird, Archaeopteryx, split ...