A new study theorizes that evolution ticks at different speeds, especially when a big group of organisms first appears.

This rainforest tree solved one of evolution’s hardest problems. Here’s how it evolved to use tension and geometry to fire ...

Flash forward 10 years and Sivakumar had become an integrative biology major paid to conduct groundbreaking research into how ...

Fossils unearthed in Morocco are the first from a little-understood period of human evolution and may be remains of a ...

With copper-blue blood prized by modern medicine and a body plan older than dinosaurs, the horseshoe crab reveals how ancient ...

A reduced genome in an island species raises evolutionary questions.

Sitting in my campsite at Goblin Valley State Park, I saw an antelope ground squirrel standing erect on its back feet, which ...

Quick Take Reaching a size 5 times larger than males is a biological benchmark for breeding females. Holding breath for 10 ...

Winter is cold, winter is wind, winter is snow. Winter requires species to evolve, to respond to the snowpack to survive.