Fewer than 20% of all sharks are larger than adult humans.

In addition, half of all the 400 different species of shark never grow beyond 6 feet long, which is about the size of an average adult human male. Now some of you are surely asking, "but how scary are the members of that original 20%...?"

Fear not! The three largest sharks (and three largest fish in the sea for that matter) are the whale shark, the basking shark, and the megamouth - all of which are completely harmless to humans!