Scientists say they have discovered a key factor in the lab formation of human primordial germ cells -- the precursors to egg and sperm -- and that it differs significantly from experiments involving rodent cells.
Scientists call it "invasional meltdown," and it's the theory that once an alien species takes root in a new land, it opens the door to intrusions from other invading organisms.
Holy heart attack! Researchers have found that certain high-risk heart patients stand a better chance of survival if they go to a teaching hospital when all the cardiologists have left town.
They've thrilled visitors to Yellowstone National Park for well over a century -- simmering ponds of brilliant, rainbow colors with unforgettable names like Grand Prismatic Spring and Sapphire Pool.
Cell lines commonly used in medical research are plagued by contamination and misidentification, according to experts, and scientists need to do more to clean up their act.
The teenage years are awkward for everyone, but some adolescents experience more anxiety than most when it comes to social interactions.
Think there's nothing more wholesome than a tub of popcorn and a classic children's animated film?
Do you lack self-control when it comes to food? If so, maybe you need to slow down a bit.