From pointing to animated arm movements and nodding, people regularly employ gestures to accompany and create language. Now, it’s been suggested that humans can also understand sign language used by ...

At the turn of the 20th century, a famous horse named Clever Hans toured Germany. The horse stunned crowds as his trainer demonstrated the animal's alleged ability to understand German, tell time and ...

While working at the Salk Institute for Biological Studies in La Jolla, Calif., the late cognitive neuroscientist Ursula Bellugi discovered that, much like spoken language, sign language was made up ...

CNN — From pointing to animated arm movements and nodding, people regularly employ gestures to accompany and create language. Now, it's been suggested that humans can also understand sign language ...