The most extras ever used in a movie was 300,000, for the film Gandhi in 1981. Every person has a unique tongue print. Your right lung takes in more air than your left one does. Women's hearts beat faster than men's. When Bugs Bunny first appeared in 1935, he was called Happy Rabbit.
Bubble gum contains rubber.
The sound of E.T. walking was made by someone squishing her hands in Jello. The sex organ on a male spider is located at the end of one of its legs. Even if you cut off a cockroach's head, it can live for several weeks. Chicken soup was considered an aphrodisiac in the Middle Ages. Most American car horns honk in the key of F. 62.