Evolution & Origins of Life

What Does It Mean for a Trait to Be Evolutionarily Conserved?

The Evolution of the Seahorse: From Pipefish to Pregnancy

When Did Fish Evolve? A Timeline of Their Origins

What Is Macroevolution? Definition and Examples

Positive vs. Purifying Selection: How Evolution Works

How the Ostrich Evolved for Speed and Size

What Did Wasps Evolve From? Tracing Their Origins

Why Is Reproduction Important for Species Survival?

What Were the Most Iconic Animals of the Pliocene?

Where Was Wheat First Domesticated?