A Jefferson County convenience store was robbed Wednesday night by a gun-wielding man wearing a skeleton mask. The robber, authorities said, made his getaway on a skateboard. "It seems like ...

Then the skeleton, an Instagram phenomenon known as Ribs Man, hops on a skateboard and does a handful of smooth tricks across the wide steps in front of the American Airlines Center.

This image shows the skeleton of a skate. Most of the skeleton is made of cartilage, which is labeled in blue (1). However, parts of the skeleton are calcified, like bone, including the skull (2), ...