Koko, the western lowland gorilla that died in her sleep Tuesday at age 46, was renowned for her emotional depth and ability to communicate in sign language. She became an international celebrity ...

Sign language is a language you express by using your hands and face instead of spoken words. It’s most commonly used by people in the Deaf community. How many types of sign language are there? There ...

WOODSIDE, Calif. — Koko the gorilla who mastered sign language, raised kittens and once playfully tried on the glasses of the late actor Robin Williams, has died. She was 46. The Gorilla Foundation ...

Not so long ago, deaf children were punished in the UK for using sign language in the classroom. Recounting his experience in the 1960s, one deaf person told one of my colleagues many years later: “I ...