WASHINGTON — A new study sheds light on just how efficiently the world’s largest soaring bird rides air currents to stay aloft for hours without flapping its wings. The Andean condor has a wingspan ...

Wing-beat-frequency data for a variety of flying animals versus the square-root of the animal mass divided by the wing/fin area. A single universal equation can closely approximate the frequency of ...

A new study into the flight characteristics of condors — the largest soaring birds on Earth — finds that they rarely flap their wings once airborne. Condors are capable of flying for over a hundred ...

LOUISVILLE, Ky. — Temperatures are trending up this time of year, and so are the hummingbirds. The colorful and speedy birds are migrating north throughout the United States and several reported ...

The movements of swimming fish and flapping birds are remarkably similar despite great differences in their bodies and physical environments, in a surprise finding which could be used to design ...

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. Before they evolved the ability to fly, two-legged ...

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 ...

WASHINGTON — A new study sheds light on just how efficiently the world’s largest soaring bird rides air currents to stay aloft for hours without flapping its wings. The Andean condor has a wingspan ...

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 ...