Sharks are cartilaginous fish in the Class Elasmobranchii. There are about 400 species of sharks. Below are some of these species, with facts about each.
Whale Shark (Rhincodon typus)
Courtesy KAZ2.0, Flickr
The whale shark is the largest shark species, and also the biggest fish species in the world. Whale sharks can grow to 65 feet in length and up to about 75,000 pounds in weight.Their back is gray, blue or brown in color and covered with regularly-arranged light spots. Whale sharks are found in warm waters in the Pacific, Atlantic and Indian Oceans.
Despite their huge size, whale sharks feed on some of the tiniest creatures in the ocean, including crustaceans and plankton.
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