Jumble

A mongoose is lightning fast and has razor-sharp teeth. A black mamba can kill 15 grown men with just one bite. Which of these two mortal enemies will win?

A Mongoose and Black Mamba Fight to Death (2:33)

It's commonly known that a single asteroid set off the dinosaurs' extinction. Even more destructive than its impact was the chain of events it set into motion.

How a Single Asteroid Wiped Dinosaurs Off This Planet (1:14)

For six weeks, luna moth caterpillars gorge themselves on the leaves of the marula tree. Then, when they're ready, they instinctively weave giant cocoons around themselves in preparation for their stunning metamorphosis.

Timelapse Footage of a Giant Caterpillar Weaving Its Cocoon (2:34)

Eric Green, director of the National Human Genome Research Institute, explains how genomics are revolutionizing medicine at Smithsonian's "The Future is Here" event

The Human Genome: Unlocking Life's Code (15:37)