A gentle gorilla who famously mastered sign language and understood 2,000 words has sadly passed away.
Scientists have found evidence to suggest that some fish can use a form of rudimentary sign language.
Two sophomore students have invented gloves that can turn American Sign Language in to spoken words.
A gorilla who can speak sign language has appeared in a new video to raise awareness for climate change.
Sign language gestures used by our primate cousins have been documented in full for the first time.
Scientists have found that dolphins are able to communicate with one another through the slapping of their tails in what...