Even the experts can’t teach a gorilla to be a mother — that comes from the heart. In a video posted this week by her caretakers, Koko the gorilla — famous for her knowledge of modified American Sign ...

Ensuring d/Deaf children become bilingual in sign language and English should be a key priority for policymakers and teachers because this plays an important role in their education, a new study says.

It takes an average of 8 or more years to become fluent in American Sign Language (ASL). The proficiency chart below (created by American Council on the Teaching of Foreign Languages) shows levels of ...

Sign language is an interesting past, with its origins extending much further back than recorded time. Researchers envision that early humans likely used gestures to communicate silently when hunting ...