Learn more about extinction and how it affects the world around you.

This study identifies the fall of dinosaurs as the factor that allowed mammals to evolve into the dominant tetrapod form. It refutes the single-cause impact the

This 2005 edition of The Evolution and Extinction of the Dinosaurs is a unique, comprehensive treatment of this fascinating group of organisms. It is a detailed

Broadening the basis of information on the topic of the Cretaceous extinction, this book particularly highlights evidence that points away from the global catas

The past is full of mysterious events. How did ancient people build pyramids. What is Stonehenge for? Maybe the explanations for these events are simple ... or