LATER this year a team led by Adrian Thomas, a professor of biomechanics at the University of Oxford’s Department of Zoology, will try to break the human-powered water speed record. The aim is to ...

At 33 pounds, Andean condors are the heaviest soaring birds on Earth, but a new study finds they can stay airborne for up to five hours at a time without flapping at all. Facundo Vital In the high, ...

The audio version of this article is generated by AI-based technology. Mispronunciations can occur. We are working with our partners to continually review and improve the results. The flapping wings ...