Of all the words Dr. Seuss made up in his storybooks, only one has stuck in the English vocabulary: grinch, which is refers to a killjoy -- and it took more than 20 years.

A superstition in baseball is to never lend your bat to anyone or you will be jinxed.

The lifespan of a firefly is about seven days. During these days, they are busy trying to find a mate.

AMAZING FACTS