Finally, explanations for things you never stopped to think about twice.

Add Yahoo as a preferred source to see more of our stories on Google. Stay sharp and learn something new every day or stock up on knowledge for the next 105 days with these fun facts about life, ...

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 ...

Brynnley Fister, a student, wears bunny ears during the Bean Museum's Easter Trivia night. The event combined biology, plants and Easter-themed questions for an interactive springtime activity.