Team up with Ackerley the Acanthostega to travel back 66 million years to the Tertiary and Quaternary periods of prehistoric Earth, when mammals came to dominat

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

For most of us, the story of mammal evolution starts after the asteroid impact that killed the dinosaurs, but over the last 20 years scientists have uncovered n

Highlights fundamental principles of scientific inquiry while detailing the early evolution of birds and mammals.