After 15 Years of Study, a New Theory of What Causes Fairy Circles

In Namibia, at the boundaries between grassland and desert, a strange phenomenon has puzzled people for centuries. Mysterious circles of barren land form in the middle of rich, thick grasses. Dubbed "fairy circles," their formation has been attributed to everything from termites to poison gas. Now, a group of… » 5/20/14 8:44am 5/20/14 8:44am

Are gut bacteria the reason people who live in cold regions get fat?

Numerous animals, humans included, have adapted to living in cold climates by increasing their body size. And now, researchers have found that people living in colder regions have more obesity-related gut microbes than their warm-region counterparts. Are bacteria the reason why it's harder to lose weight in the snow? » 2/11/14 4:01pm 2/11/14 4:01pm

Embark on an aerial tour of Antarctica in The Seventh Continent

The Seventh Continent is the perfect 150-second vacation for your brain. Shot by Enrico Sacchetti from a helicopter over Antarctica's Zucchelli Research Station, the video provides a brief but stunning glimpse at the continent's surprisingly diverse geography (and that's just what we can see on the surface). » 2/08/14 11:00am 2/08/14 11:00am