Reef fish sing a 'dawn chorus' like songbirds

6 things to know about Earth's 6th mass extinction

Earth gets a surge of new ocean sanctuaries

Why would militants take over a wildlife refuge?

Giant reef with doughnut-shaped structures found 'hiding' behind Great Barrier Reef

Why flowering meadows are better than lawns

Clever animation reveals hidden cost of deforestation in less than 1 minute

Popular pesticides cause major damage to bees, new study shows

Why cardinals can be good for your health

Extreme bees live on edge of active volcano

(Un) Happy Earth Overshoot Day

The ancestor of all known life was a microbe that ate hydrogen from deep-sea volcanoes