Our brains are ravenous, guzzling up to a quarter of the body's energy. So thinking really hard should be an easy way to burn more calories — right?
Head-bobbing might make pigeons look ridiculous, but there's a practical purpose behind this very strange display.
Several countries are launching claims to vast swathes of the Arctic seabed. But what does that mean for political and environmental stability in the region?
How many people could fit on the moon? Answering that may require asking other questions — about lunar survival.
Beneath the Arctic lie billions of barrels of oil. But as the international energy race intensifies, we wonder, how did all that oil get there in the first place?
We're making great strides in developing alternatives, but here's why it's still necessary to test on animals.
You may give them little thought beyond when to trim them or which nail color to apply. But the humble nail laid the groundwork for our evolution into the humans we are today.
There’s a new theory on what may have triggered the 2014 earthquake that tore through California’s Napa-Sonoma Valley.
When fishers recently hauled up their catch from a river in the province of Guizhou in southern China, they weren't expecting to come face-to-face with a fish that had a bird's head.