Rapid shifts are the hallmark of climate change, epileptic seizures, financial crises, and fishery collapses. Deep mathematical principles tie these events together.

With population and per-capita consumption both on the rise, it's hard to believe humanity's impact on the Earth is sustainable. But what would happen if we ate less meat? Or gave women better education and more power? David Biello takes a critical look.

The endurance running hypothesis, the idea that humans evolved as long-distance runners, may have legs thanks to a new study on toes.

From the fevered mind of Bruce Sterling and his alter-ego, Bruno Argento, a consideration of things ahead.

Life is more varied near the equator. But making sense of that has confounded biologists for 200 years.

The effeminate sheep and other problems with Darwinian sexual selection.