Have you ever looked at your hands and wondered how and why human beings developed 5 fingers over the course of evolutionary ...

Did you know polydactyl cats have a genetic mutation? Learn more about cats with extra toes. ... England, was known to use his four extra toes to pick up toys and climb like a human.

Polydactyly of (a) hands and (b) feet. Every year, about 7.9 million infants (6% of worldwide births) are born with serious birth defects.

Polydactyly—having extra fingers and/or toes—is usually treated at birth by surgically removing the extra digits. Because this mutation is often removed very early in life, there have been few ...