If the headwind is greater than an aircrafts maximum speed, the plane will fly backwards. Glass is the only substance that gets stronger the longer it stays underwater. All polar bears are left-handed. Thomas Edison preferred to read Braille. A bear has 42 teeth.
Female armadillos have exactly four babies of the same sex at a time.
A flea expert is a pullicologist. Composer J.S. Bach had 20 children. A frog has to close its eyes in order to swallow. Poet Henry Wadsworth Longfellow was the first American to have plumbing is his home. Pigs can run a mile in 7 and a half minutes.