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 ...

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 ...

Troy Kotsur, Justina Miles and Colin Denny perform in American Sign Language and Plains Indian Sign Language at the Super Bowl LVII pregame show at State Farm Stadium in Glendale, Ariz., on Sunday.