Worm Discovery Illuminates How Our Brains Might Have Evolved
Genetic traces similar to those in vertebrate brains have been found in lowly worms, but not all scientists are convinced that complex brains were already in the works more than 500 million years ago
Poor Diets Lower Sperm Counts
Red Meat Consumption Increases Risk of Early Death
Circumcision Cuts Prostate Cancer Risk
Personality Might Be Genetically Encoded in Bee Brains
Knee Replacements on Shaky Scientific Ground
Japan's Post-Fukushima Earthquake Health Woes Go Beyond Radiation Effects
Heart disease and depression are likely to claim more lives than radiation after the earthquake, tsunami and nuclear accident, experts say
Zombie Flies May Be Killing Honeybees
Scientists have uncovered a surprising clue to the causes of colony collapse disorder
A Visual History of Ancient Miniature Horses [Slide Show]
Eight equines that paved the way for the massive modern horse
First Horses Shrunk by Warming Climate
The sizes of the earliest equines followed the ancient temperatures through major climate change, adding evidence to a centuries-old evolutionary theory
Staph Turns into Drug-Resistant Superbug on Farms
Hepatitis C Now Killing More Americans Than HIV
Polarized Display Sheds Light on Octopus and Cuttlefish Vision-and Camouflage
Contagious Cancer: Genome Study Reveals How Tasmanian Devil Cancer Has Spread
Microchip Implant Gives Medication On Command
A tiny chip implanted under the skin can dole out dozens of doses of osteoporosis medication right on schedule
Love for Life? 12 Animals That Are (Mostly) Monogamous [Slide Show]
Is monogamy a myth even in the animal kingdom? Not necessarily. A look at animals that are said to pair off for life
Smoke and Mirrors: Driving While High on Marijuana Doubles One s Chances of a Serious Car Crash
Y Chromosome Can Raise Heart Disease Risk by 50 Percent
Fasting Might Boost Chemo's Cancer-Busting Properties
A new animal study suggests that short-term starvation might improve outcomes for cancer patients undergoing chemotherapy
Baby-Led Weaning Leads to Leaner Kids
Anthrax Toxicity Depends on Human Genetics
Brain Injury Rate 7 Times Greater among U.S. Prisoners
Prisoners suffer disproportionately from past traumatic brain injuries. Researchers are hunting for the best tools to treat this population in an effort to help them reintegrate into society--and avoid re-incarceration
New Map Shows that Most Lyme-Infected Ticks Are in Northeast, Northern Midwest
Elegance of Spider Webs Helps Make Them Strong