More Episodes

These Fossils Were Supposed To Be Impossible

Hidden in rocks may have animal kingdom’s oldest known predator.

How a Mass Extinction Changed Our Brains

Our brains actually shrank relative to our bodies in evolution.

That Time the American West Blew Up

How is it possible to have cataclysmic eruptions without any real cataclysm?

View all episodes

Other shows you may enjoy

NOVA
Nature
Physics Girl
NOVA scienceNOW
Kingdoms of the Sky
A Year in Space

Browse all shows