Despite having bat-like wings, two small dinosaurs, Yi and Ambopteryx, struggled to fly, only managing to glide clumsily between the trees where they lived, according to a new study led by an...
Biologists now have a better idea of the origin of birds and the evolution of flight, two iconic events in the history of life on earth, thanks to work by a group of international scientists...
While smaller dinosaurs needed speed, huge predators like T. rex were optimized for energy-efficient walking, according to a study published in PLOS ONE.