Chimpanzees and bonobos can communicate with greater flexibility using hand gestures than they can with facial expressions or vocalizations, new research shows. Their use of hand motions to convey ...

Gestures—such as pointing or waving—go hand in hand with a child's first words, and twins lag behind single children in producing and using those gestures, two studies from Georgia State University ...

Unless you're hard of hearing, or have hearing-impaired friends or relatives, you probably won't understand sign language, which is frustrating for those who rely on it to communicate. Now engineers ...

BABIES exposed to sign language babble with their hands, even if they are not deaf. The finding supports the idea that human infants have an innate sensitivity to the rhythm of language and engage it ...