Did the Ozone Collapse 252 Million Years Ago?

Why Were Sails So Popular 300 Million Years Ago

The Terrifying Reason Flightless Dinosaurs Grew Feathers

How the Tibetan Plateau Created the Ultimate Cat

When Mammals and Reptiles Split

What Drove Life Into The Trees?

When Earth Was a Toxic Wasteland

We found survivors of the world's greatest extinction off the side of a road.

The Mystery of the Missing Deep-Sea Fish

The Worst Mass Extinction Ever | Eons: Life and Death on Pangea