Global warming has profound effects on our planet, including melting Earth’s immense ice sheets. A new study from NASA reveals an unexpected result of all that ice melting: It’s moving the axis of rotation of the entire planet.
He’s been called the first man "to boldly go where no man has been before." Or, at least, no Englishman. Captain James Cook explored and mapped Australia and New Zealand, and became the model for Captain James T. Kirk of Star Trek fame.
The Pinta tortoises of the Galapagos Islands have been extinct since the last one, Lonesome George, died in 2012. Now, scientists are trying to revive the species using hybrid descendants recently discovered.
"As I was watching, the largest of the whales started swimming directly at me, at which point I got very scared because I know that they are the only animal which could, and indeed have swallowed a human being, and it's not nice way to go.“
Menopause is a puzzle for biologists. Why would the female of a species cease to reproduce half way through her life, when natural selection favors characteristics that help an individual's genes survive? A study of killer whales — one of only two mammals apart from humans to undergo menopause — is providing clues.
When you think of sand, you might think of something brown, or white, if you're lucky. Maybe black if you're on a beach on Hawaii's Big Island. But the reality is sand is a melange of colors as varied as the rainbow.
As summer ends, people are cramming in that much-needed vacation in increasing numbers. But not everyone is taking them, indeed a quarter of American workers get no paid time off. And that's a problem for our brains.