Evolution

New research traces the origins of our metabolism back in time

Pass the glucose

Are you regular swole? Or neanderthal swole?

The nutrients found in animal excrement should never be discounted

Hallucination may have more to do with our shared brain chemistry with snails, insects, and sea urchins

Contrary to popular belief, it had little to do with the dinosaur-killing asteroid

Mutualistic partnerships between species abound across nature—but it’s a tricky dance to make sure both parties keep pulling their weight

Cephalopods are loners, but they’re also intelligent

It’s become uniquely suited to handle below-freezing temperatures and a diet of poisonous plants

A maternally inherited bacteria that turns males into females is foiled by a brief warm spell

The science behind nature’s different puncture tools

Its life in the darkness could shine a light on other neural rewiring