There are more than 500 species of sharks in the world's oceans, from the 7-inch dwarf lantern shark to whale sharks that can grow to over 35 feet long. They're found from polar waters to the ...

Smallest Shark: Mature males of the dwarf dogshark (Etmopterus perryi) do not exceed seven inches in length. Average swimming speed of a shark: About a yard per second Fastest clocked speed ...