Evolution

Younger species of sharks and rays were more likely to die out

How being food for other animals has made us into the humans we are today

A study notes marked lifespan increases in mammals that have been castrated or kept on contraception

Scientists found the plague pathogen hiding in a 4,000-year-old sheep, shedding light on the earlier, more elusive pandemic before the Black Death

Meet the miniscule protist harboring jaw-dropping evolutionary secrets

The face of our sturdy evolutionary cousin comes into focus

Are you Team Sponge or Team Comb Jelly?

Perhaps intelligent life wasn’t so unlikely after all

Why do humans have such stupid knees, ankles, and backs?

How we adapt is shifting

Which came first: colorful signals or the color vision needed to see them?

From cells to cellphones, trial and error shapes it all