The word racecar and kayak are the same whether they are read left to right or right to left. A snail can sleep for 3 years. China has more English speakers than the United States. The electric chair was invented by a dentist. Did you know you share your birthday with at least 9 other million people in the world.
Cats have over one hundred vocal sounds, dogs only have about ten.
Our eyes are always the same size from birth, but our nose and ears never stop growing. In every episode of Seinfeld there is a Superman somewhere. She would stand seven feet, two inches tall and have a neck twice the length of a normal human's neck. Feb 1865 is the only month in recorded history not to have a full moon. The Pentagon, in Arlington, Virginia, has twice as many bathrooms as is necessary.