Engineers Drained the Niagara Falls and Uncovered Its Dark History

The More You Know

• Following the release of Rocky IV, a joke was making rounds in Hollywood. Since Rocky had run out of opponents, he would have to fight an alien if a fifth movie was made. Jim and John Thomas took the joke seriously and wrote a screenplay based on it, which later became the movie "Predator".
• About 7% of all humans who have ever lived are alive today.
• The word "kimono" means "a thing to wear."
• A pack of chihuahuas once terrorized a town in Arizona.