Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient world slept only 6.5 hours a night.

Scientists researching Alpine glaciers store ice in Antarctica. By analysing air bubbles in the ice they may be able to predict the future ...

They’re usually animals like wolves, coyotes, beavers and bears, but the program also kills creatures it doesn’t mean to — like family dogs and endangered wildlife. M-44s, or “cyanide bombs,” are one ...