The Strange Case of the Surgeon at Crowthorne

Free from their mother's care, five young lions must fend for, and feed, themselves. Their first challenge: a giant giraffe who refuses to be caught.

Incredible: Five Lions Take Down a Giraffe (2:49)

Just outside North Carolina's Outer Banks is Roanoke Island, the scene of one of the greatest unsolved mysteries in U.S. history: the disappearance of an entire colony of English settlers.

The Colonial Settlement That Vanished Into Thin Air (2:10)

The superheros creator, William Moulton Marston, was a Harvard-trained psychologist and inventor and infused his daily life into the comic book.

The Origin Story of Wonder Woman (4:36)

Green tree vipers can kill in the dark. With special heat-sensing abilities, they can find prey that's all but invisible.

A Pit Viper's Sixth Sense (2:03)