Discover's 20 Things You Didn't Know About Everything

“More than mere trivia . . . Written with wit and humor, the entries are fun to read and easy to understand, demanding no scientific background.” —School Library Journal

How much do you know about . . .

Obesity * Sleep * Meteors * Aliens * Bees * Sperm banks * Sex in space * Duct tape * Germs * Airport security * Death * Ancient weapons * Rats * The Internet * Birth * Weather * Milk * Mosquitoes * Y...