The planet's magnetic field is weakening. Scientists aren't sure why, but studying ancient jars could help them find out. The ceramics provide a remarkable window onto Earth's magnetic past.
Research suggests that college students are not having more sex than their parents were a generation ago. But sociologist Lisa Wade says the culture around sex has changed dramatically.
Currently, one-fourth of all fish caught globally goes to produce fishmeal and fish oil for farmed seafood, pigs and chickens. A lot of it is "food grade" and could be feeding the world's hungry.
Scientists have created addiction-resistant mice by altering the reward system in their brains. The findings shed light on the biochemistry of addiction.
Tiny creatures in the Mariana Trench have high levels of industrial contamination. The new findings suggest that even Earth's most remote locales feel the effects of human beings.
What's the single most important thing that the world's farmers could do to reduce global warming? Give cattle — especially in the tropics — faster-growing, more nutritious pasture.
A study tracking depression rates among U.S. teens from 2005 to 2014 finds an increase — especially among girls. A steady diet of harsh judgments from social media may play a role, researchers say.
Some breeders vie to grow ever more mouth-burning peppers. The guy behind the Habanada had a different goal: a habanero with no heat all. The aromatic, melon-like result is winning over top chefs.