Neil F. Hadley enjoyed a distinguished career as a biologist and professor, capped by a term as dean of the graduate school at the University of North Carolina Wilmington. Yet one suspects, like a lot ...

Try standing on one leg for 30 seconds. Now the other one. Not so easy. As we age, this ability to balance on one leg declines more dramatically than other signs of aging such as grip and knee ...

It’s a question visitors ask staff all the time at the Smithsonian’s National Zoo’s Bird House. The answer may surprise you! Mike Bock A pair of short-billed dowitchers, foreground, adopt a one-legged ...