Earth and Life

Life and Evolution

How life changed over time and what fossils tell us.

Are Humans Still Evolving?

Yes, evolution continues in people today. Learn how selection, mutation, drift and gene flow still act on human populations, and what the evidence does and does not show.

4 min read

Did Dinosaurs Really Exist?

Yes. Learn how dinosaur fossils form, how scientists date them, and the many kinds of evidence, from bones to footprints to eggs, that show dinosaurs once lived.

4 min read

Life and Work of Charles Darwin

A short biography of Charles Darwin: his early life, the Beagle voyage, years of careful study and the 1859 book that set out evolution by natural selection.

4 min read

What Is Natural Selection?

Natural selection explained simply: variation, inheritance and differing success in survival and reproduction, with examples from moths, finches and bacteria.

4 min read

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