"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Stay sharp and learn something new every day or stock up on knowledge for the next 105 days with these ...

Talk about a bizarre feature of the human body: If you happened to swallow a razor blade, your stomach acid would dissolve it. Acids are ranked on a scale from zero to 14—the lower the pH level, the ...

Did you know that scientists are tracking voles with glittery poop? Or that some clownfish actually shrink in size to stay cool? What about there are dancing, dueling galaxies? If this is news to you, ...

VIRGINIA BEACH, Va. — The ocean covers more than 70% of Earth's surface, yet remarkably, we’ve explored only about 5% of it. Despite this mystery, what we do know reveals just how vital — and ...

Chinese New Year marks the start of the New Year based on the lunisolar calendar, which falls on the first new moon between ...