David Murphy discovered one of his calves had three hooves on each of its front feet. This genetic defect is called ...

Actor David Tennant has confirmed he has a rare condition called polydactyly, meaning he has an extra toe on his right foot. The condition, giving him a total of 11 toes, was first noticed by fans ...

Every year, about 7.9 million infants (6% of worldwide births) are born with serious birth defects. With the causes of over 50% of birth defects unknown, how do we diagnose and prevent them?

This is formally known as polydactyly. According to the National Organization for Rare Disorders, polydactyly is present in about 70% of people who have BBS. Additionally, children with BBS ...

This genetic defect is called polydactyly. David Murphy, of White, South Dakota, had a calf with three hooves on each leg. This genetic defect is called polydactyly.