The More You Know

• In 1945, Dwight D. Eisenhower predicted that people would try to dispel the holocaust as a falsehood, and ordered all possible photographs taken of the Nazi crimes to hinder any such attempts.
• Hippos have the largest mouths of any animal on land.
• Little brown bats sleep more than any other mammal on earth.
• Your brain is sometimes more active when you're asleep than when you're awake.