These giant predators are helping solve the mystery of Earth’s cooling shift some 50 million years ago....
Climate History
The results of Foote’s simple experiments were confirmed through hundreds of tests by scientists in the U.S....
Drought has been a threat multiplier for centuries, fueling conflict and migration from the time of the...
Using remnants of fossilized trees, scientists and an artist figured out what the forest looked like long...
Over the last 800,000 years, Earth has been through 11 major ice ages. Is another on the...
A fearsome predator? A fragile icon of impending extinction? What these arctic giants have stood for in...