A cat has 32 muscles in each ear. See more

Al Capone's business card said he was a used furniture dealer. See more

Astronaut Neil Armstrong first stepped on the moon with his left foot. See more

Hummingbirds are the only birds that can fly backwards. See more

"Skepticisms" is the longest word that alternates hands when typing. See more

The longest one-syllable words in the English language are "strengths" and "screeched". See more

The thumbnail grows the slowest; the middle nail grows the fastest. See more

In rural areas, there are more insects in 1 square mile than there are humans on earth. See more

"I am." is the shortest complete sentence in the English language. See more