Why Paleontologists Can't Stop Fighting About Spinosaurus

The Dinosaurs Too Big To Be Dinosaurs

Darwin's Final Obsession

There's An Invisible Ocean Between These Fossils

The Rise and Fall of a Whale-Eating Sea Monster

When Red Pandas Roamed North America

The Arms Race That Made Insects Take Flight

The Graveyard at the Center of the Earth

Why Wasn't There A Second Age of Reptiles?

The Strange Primates That Thrived In The Mountains

The Mystery of the Cretaceous Pompeii

Did Asteroids Spark Life?