Many people think that sharks are dangerous. There are a few sharks that are dangerous. However, most of them are not. Sharks are great swimmers with streamlined bodies. Some have huge jaws with rows of razor-sharp, triangular teeth. There are more than 250 different kinds of sharks that live in the sea. They range in size from 4 inches long to nearly 50 feet long. One of the strangest-looking sharks is the hammerhead shark. Its head is shaped like a huge hammer with one eye on either side. This is believed to give it better eyesight for hunting fish.
[Home|Open Seas|Whale|Dolphin|Sea Lion|Ray|Barracuda|Squid|Sponge]Photograph of Sponge by Alan Gornick Jr.© Aris Multimedia Entertainment, Inc. 1994