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Scientists say, "our results suggest that ritual killing helped humans transition from the small egalitarian groups of our ancestors, to the large stratified societies we live in today."

The craft-coffee scene is big in San Francisco, Portland, Seattle and New York. It's gaining traction in San Diego.

Doulas provide emotional support for a woman through pregnancy and childbirth. A study finds that women with doulas are less likely to have cesarean or preterm births.

Experiments on mice have given scientists an understanding of how the virus causes severe brain malformations.

The machines, pulled in 2013, expose travelers and airport workers to a dose of radiation well within acceptable limits — a factor of 10 below recommended safety standards.

The expansion of the Panama Canal, a $5 billion project, opens next month and aims to triple the canal's capacity with bigger ships. A Chinese freighter will be the first one through the new locks.

Illustrator Simon Stålenhag has put together a compilation of short stories to accompany his haunting, gorgeous paintings of an alternate Sweden full of aliens and strange technology. And dinosaurs.

Lipton is just about synonymous with industrial Big Tea these days. So you might be surprised to learn that once upon a time, Lipton was known for selling tea direct from its own gardens.

Despite a lot of rhetoric, decades have passed — and administrations have come and gone — with little progress in educating language-minority students.

What comes out of the tail end of worms appears to be very good for crops.