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 ...

LAWRENCE — Sometimes you have to take a step backward to move forward. Or, in the case of patients recovering from ACL reconstruction, a hop backward may help them know if they are ready to return to ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Stand up and try to balance on one leg. Can you do it? How long we ...

CAMBRIDGE, MA — Insect-scale robots can squeeze into places their larger counterparts can’t, like deep into a collapsed building to search for survivors after an earthquake. However, as they move ...