For generations, tattoos have served as both a rite of passage and a record of service for members of the military.

A Ceratosaurus fossil that is one of only four known to exist has sold for $30.5 million at auction. The rare dinosaur fossil ...

Find Head Xray stock video, 4K footage, and other HD footage from iStock. Get higher quality Head Xray content, for less—All of our 4K video clips are the same price as HD.