These geckos have adapted their webbed feet not only to help them stay atop, but to bury beneath the dunes of the Namib Desert. Strictly nocturnal lizards, they spend the day in self-dug burrows ...

A common anatomical variation is being born with more than ten fingers or more than ten toes. Former Doctor Who actor David Tennant this week confirmed he has 11 toes. He says he was born with an ...