An egg might look delicate, but its shell is a marvel of natural engineering. For centuries, people believed that its strongest orientation was standing upright on its end. The idea seems to make ...

Even if you don’t recall many facts from high school biology, you likely remember the cells required for making babies: egg and sperm. Maybe you can picture a swarm of sperm cells battling each other ...

Vaccine myths have outlived the studies that disproved them, and the gap between what the evidence shows and what many parents believe continues to widen. Large-scale cohort studies involving hundreds ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." In an episode of Grey’s Anatomy, a nursing home resident—and devoted Gutter Girlz bowling team ...