Evolution & Origins of Life

The Evolution of Merychippus: The Three-Toed Horse

How Powered Flight Evolved in Insects, Birds, and Bats

Endless Forms Most Beautiful: The Diversity of Life

Directional vs. Disruptive Selection: How Populations Change

How Does Comparative Anatomy Support Evolution?

What Animals Lived During the Jurassic Period?

What Is the Oldest Fossil Ever Found?

How Smart Are Humans Compared to Animals?

How Long Has Grass Been Around? An Evolutionary Timeline

What Is Inclusive Fitness Theory?