Skip to content
FIELD NOTES

Evolution

Explore how populations change across generations, and the genetic, fossil and ecological evidence used to study evolutionary history.

← All Nature & Wildlife
Fossil skeleton of the ancient whale Basilosaurus in a museum display
EDITOR’S PICK

How Whales Went From Walking on Land to Living in the Ocean

Whales carry the history of land mammals inside their ears, ankles, spines and genes. Their fossil record documents one of evolution’s most dramatic returns to the sea.

Sep 16, 2026 • 4 min readRead the discovery →
LATEST

Latest discoveries

New stories, explanations and research from Evolution.

Wild horses running across open rangeland in central Nevada
Evolution

How Did Horses Evolve?

Horses did not evolve in a straight line from a tiny ancestor into the modern animal. Their family tree branched repeatedly as climates and…

Oct 1, 2026 • 4 min read