A new study finds that the rate of ocean warming has more than quadrupled over the past 40 years — and pinpoints why.

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.

This is a sample of The Echidna newsletter sent out each weekday morning. To sign up for FREE, go to theechidna.com.au ...

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