If it’s been hours since you last ate, you should be starving — but why does hunger sometimes cause nausea instead?
A complex network of skull bones, ligaments and muscles allows a snake to swallow prey with bodies much larger than the sinuous predator's own head.
The striking lionfish is invading the Atlantic Ocean, eating its way through coral reef after coral reef.
As any lobster connoisseur knows, this crustacean turns bright red when it's heated. Why does this dramatic color transformation happen?
If you nibble on a mint leaf, you might notice that it makes your mouth feel cool. That's because mint, much like chili peppers, is a biochemical success story — for plants, at least.
Humans did not evolve from apes, gorillas or chimps. We share a common ancestor and have followed different evolutionary paths.
Frozen sperm didn’t seem fazed by several loop the loops in an aerobatic plane, but that’s a far cry from showing that they would make a healthy baby in space.
Some people can sit outside all summer long and not suffer from mosquito bites. Others turn into an itchy mess despite bathing in DEET and never leaving the purple glow of the bug zapper. What gives?