Science & Environment

What does life truly need to survive? Writing in the Proceedings of the National Academy of Sciences, Alison Murray and colleagues describe a community of unusual bacteria that survive under 20 meters of ice in the dark, salty, sub-freezing waters of Lake Vida, Antarctica.

Bag-in-the-box wine doesn't have the classiest of reputations. It's usually cheap and in the past at least, has been aimed at less sophisticated consumers. But in recent years, boxed wine has tried to buck the stereotype, whether by gussying up the product packaging or simply putting higher-quality wine in the box.

Countries attending U.N. climate talks were not able to come up with any major agreements on reducing carbon emissions and slowing global warming. This comes after the World Bank issued a report predicting global temperatures could rise by 7.2 degrees Fahrenheit by the end of the century — possibly sooner if current promises to curb emission are not kept. Renee Montagne talks about this with World Bank President Jim Yong Kim.

We all know that nobody's perfect. But now scientists have documented that fact on a genetic level.

Researchers discovered that normal, healthy people are walking around with a surprisingly large number of mutations in their genes.

It's been well known that everyone has flaws in their DNA, though, for the most part, the defects are harmless. It's been less clear, however, just how many mistakes are lurking in someone's genes.

The earthy smell of a fresh beet may spark delicious thoughts for us, but for a fruit fly, that smell screams danger.

Geosmin, a naturally occurring chemical that gives beets, fresh soil and corked wine their distinctive smell, is also cranked out by bacteria deadly to fruit flies. And it turns out that the tiny flies have a direct pathway from nose to brain made just to detect that smell — and avoid the toxic microbes that produce it.

It's no surprise that how much a person eats determines how full they feel right after a meal. But it's the memory of that meal, and not the meal itself, that matters a couple of hours later. So does this mean you trick yourself into thinness? Probably not. But it does tell us something about the role that manipulating memory may play in calorie intake.

Lots of scams come by phone or by mail, but when the scam artist is right in front of you, researchers say the clues are in the face.

"A smile that is in the mouth but doesn't go up to the eyes, an averted gaze, a backward lean" are some of the ways deception may present itself, says Shelley Taylor, a psychologist at UCLA.

If I asked you to think of a murderer, what's the image that springs to mind?

If you're like most people, you'll probably think of an evil psychopath, or someone bent on revenge. Perhaps you'll see a criminal mastermind, who eliminates rivals on his way to riches. Or a strung-out drug addict, who kills because she needs money to get high.

All of these images have something in common: As a rule, we tend to associate murder with the behavior of individuals who behave in aberrational ways.