Sharks are a type of fish that lives in teh sea. Sharks have lived on earth for almost 400 million years. Today there are about 375 species (kinds) of sharks. The smallest is the dwarf dogfish wich is less than 8 inchies 920 centimeters) long. The huge whale shark can be more than 50 feet (15meters) long.
Fish, along with shellfish, is teh favourite food of most meat-eating sharks. Great white sharks will sometimes eat large sea creatures such as seal, dolphins, whales, and other marine mamals. Sharks, like all fish, are vertebrates. A sharks' skeleton, however, is not made of bone, but made of a bendable material called cartilage.
Sharks are a type of fish that lives in teh sea. Sharks have lived on earth for almost 400 million years. Today there are about 375 species (kinds) of sharks. The smallest is the dwarf dogfish wich is less than 8 inchies 920 centimeters) long. The huge whale shark can be more than 50 feet (15meters) long.
Fish, along with shellfish, is teh favourite food of most meat-eating sharks. Great white sharks will sometimes eat large sea creatures such as seal, dolphins, whales, and other marine mamals. Sharks, like all fish, are vertebrates. A sharks' skeleton, however, is not made of bone, but made of a bendable material called cartilage.