One readily noticeable pathognomonic trait of autism is hand-flapping—a stereotyped motor movement that can look a bit like an attempt to accelerating the drying of nail polish. Not all with autism do ...

Hand clapping is ubiquitous behavior for humans across time and cultures, serving many different purposes: to signify approval with applause, for instance, or to keep time to music. Acousticians often ...

I’m a 31-year-old attractive single woman, and I recently went on Match.com and found a guy. Our e-mails and one phone conversation went well, and he seemed kind and was OK-looking in his picture, so ...

New footage shows for the first time that seals clap underwater to ward off competitors and show off to potential mates. The action was captured on film for the first time by Dr. Ben Burville, a ...

They’re one of the most annoying things about living in a big city, but pigeons—aka the rats of the sky—have developed a pretty clever defense mechanism designed to scare off attackers: a loud and ...

Wild grey seals can clap their flippers underwater during breeding season. Marine mammals like whales and seals usually communicate vocally using calls and whistles. But now a Monash University-led ...