Using robotic and animal models, researchers have shown that some dinosaurs were already flapping their rudimentary wings as a side effect of running, prior to evolving the ability to fly. The finding ...

Before they evolved the ability to fly, two-legged dinosaurs may have begun to flap their wings as a passive effect of running along the ground, according to new research by Jing-Shan Zhao of Tsinghua ...

Bruce Wayne may have given us the signal on Earth, but there's a bat shadow in deep space. The Hubble Space Telescope has spotted a "curious 'flapping' motion" around the star HBC 627, nicknamed the ...