Evolution & Origins of Life

What Does the Position of the Nodes Tell You?

How Natural Selection Depends on the Environment

Why Are Most Social Mammals Less Cooperative Than Humans?

How Is Genetic Drift Different From Natural Selection?

What Did Darwin Learn From the Fossils He Observed?

Why Do Rotifers Reproduce Primarily Through Parthenogenesis?

What Animals Have Kneecaps? The Evolution of the Patella

What Is the Punctuated Equilibrium Model?

Why Are Humans So Different From Other Animals?

What Is Meant by a Hole in the Fossil Record?

What Dinosaurs Lived in Antarctica?

How Do Conservative Processes Slow the Pace of Evolution?

What Is Atavism? The Reappearance of Ancestral Traits

Are Otters Related to Dogs? A Look at Their Family Tree

Do Manatees Have Fingernails? The Evolutionary Answer

What Are Sharks Older Than? A Timeline of Evolution

Why Do Some Stickleback Populations Lack Pelvic Spines?

What Is the Flying Dinosaur Called?

What Is the Advantage of Having Cyanobacteria Living Inside a Cell?

Why Do Elephant Seals Have Trunks?