Evolution & Origins of Life

How Does Molecular Biology Provide Evidence for Evolution?

Are Cats Related to Rats? A Look at Their Evolution

What Birds Can’t Fly? The Science of Flightless Birds

What Dinosaurs Lived in the Jungle?

What Type of Adaptation Is Camouflage?

When Did Salmon Evolve? Tracing Their Ancient Origins

Is a Carnotaurus a Real Dinosaur?

What Dinosaurs Lived in Kansas?

How Big Were Spiders in Prehistoric Times?

What Did Darwin Notice About the Tortoises on the Galapagos Islands?

Are Baboons Hominoids? Explaining Primate Classification

What Was the First Dog on Earth?

What Is a Biped? The Science of Walking on Two Legs

What Big Cat Are House Cats Most Like?

How Long Have Penguins Been Around?

Are Catfish Related to Sharks? A Look at Their Evolution

What Is a Homologous Trait? Definition and Examples

What Is the First Step in the Process of Speciation?

When Did Humans Start Walking Upright?

When Did the Quetzalcoatlus Go Extinct?