Sochi 2014: What’s In & What’s Out

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)

A giant killer hornet war is waged between two colonies, and the resources, territories, and survival of a new generation are at stake. Watch the battle unfold as these huge hornets risk their lives for their kingdoms.

Two Giant Killer Hornet Colonies Battle to the Death (3:25)

Green ants build their grand nests out of leaves, which they pull and join together with silk. Amazingly, this silk is produced by their newborn larvae.

Magnificent Leaf Homes Woven by Australian Green Ants (2:50)

The hagfish is a slime-emitting ocean-dweller that's remained unchanged for 300 million years--and it shows. It has a skull (but no spine), velvet smooth skin, and a terrifying pit of a mouth that's lined with rows of razor-sharp teeth.

The Hagfish Is the Slimy Sea Creature of Your Nightmares (3:00)