Dogs have two sets of teeth, just like humans. They first have 30 "puppy" teeth, then 42 adult teeth. | High speed passenger trains in China reach speeds of up to 350 kph (220 mph). | Human birth control pills work on gorillas. | Over 100 million birds die annually by crashing into glass windows in the United States. | Jousting is the official sport in the state of Maryland.

A year from now you will wish you had started today.