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 ...

GRAND FORKS - Before she could talk, Maya Bodin had a vocabulary of eight words - words she "spoke" with her hands in sign language. When she was about 7 months old, her mother, Colleen Bodin, of ...

In a darkened room in Rochester, N.Y., a baby girl in a pink onesie peers at a computer screen. Wherever she looks, an eye tracker follows — recording her gaze patterns for future analysis. The baby, ...