evolved in theropods before birds. Whether they evolved for warmth, for display, or served some other function is not yet known. But in a small, lightly built bipedal predator leaping into the air ...

How did humans evolve into the big-brained, bipedal ape that we are today? This article examines the fossil evidence of our 6 million year evolution. Darwin's great insight, and the unifying ...

such as ostriches and some other birds. Researchers at Shandong University recently developed KOU-III a new bipedal robot that can move more efficiently in its surroundings. This robot ...