By mixing different types of stem cells in petri dishes, researchers created liver "buds" that effectively filtered blood when implanted in mice
Staph microbes with resistance to common treatments are much more common in industrial farms than antibiotic-free operations
Forty countries that receive low levels of aid for environmental conservation contain about one-third of the world's threatened species
Plant impressions found underneath a pair of ancient humans in Israel indicate they were buried ceremonially, atop a bed of flowers
Ion engines, solar sails, antimatter rockets, nuclear fusion--several current and future technologies could someday help us fuel an interstellar journey
Pinpointing exactly why we yawn is a tough task, but the latest research suggests that our sleepy sighs help to regulate the temperature of our brains
Our shoulder flexibility allows us to hurl things at high speeds compared to other primates—a trait we likely evolved for hunting two million years ago
Like pine beetles sickening a forest as they spread, cancer can be seen as a disruption in the balance of a complex microenvironment in the human body
Newly excavated fossils tell us more about the cow-sized, plant-eating Bunostegos akokanensis, which roamed Pangea around 260 million years ago
Nearly 40 years after Jaws gave sharks a bad rap, the fish are the ones that need saving, not the beachgoers
New science shows that cabbage, carrots and blueberries experience circadian rhythms, with potential consequences for nutrition
Why is a snail variety found only in Ireland and the Pyrenees? DNA analysis suggests that it hitched a boat ride with early travelers
The presence of whipworm and roundworm eggs suggest that crusaders were especially predisposed to death by malnutrition
Being exposed to faces or images that you associate with your home country primes you to think in your native tongue, a new study shows
The ocean bathing the underside of massive sheets of floating ice is slowly melting ice shelves, making them vulnerable to collapse
Cracking the Code of the Human Genome
Genetic information gathered from centuries-old exhumed bones reveals that the infection hasn't changed much in the past 1,000 years
Languages that evolve at high elevations are more likely to include a sound that's easier to make when the air is thinner, new research shows
Before hatching, a baby turtle can deliberately move between warm and cool patches within its egg--a behavior that may help determine its gender
Which came first, the chicken or the egg? Scientists figured the answers to this and other pressing questions once and for all
Special patches of trees shield deer from harsh winter weather, but deer urine stimulates growth of competitive plants in those havens
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