A majority of people in the U.S. are born with “baby blues,” but only one in five Caucasian adults have blue eyes. The irises change color from blue to green, hazel, or brown during infancy, but why? In Mental Floss’s latest video, “Why do babies’ eyes change color?,” host Craig Benzine explains changes in eye color after birth are not only based on genetics, but also on melanin levels in the eyes.
