Thursday, 2 June 2011

Sharks

Tiger Shark
Leopard Shark











There are 440 species of shark ranging in length from 17 centimetres which is the dwarf lantern shark to the whale shark existing of up to 12metres in length. Sharks have been around for at least 420 million years. They are seawater animals apart from the bull shark and the river shark but they can live in both freshwater and seawater. Sharks because they are most commonly found 2,000 deep in the ocean. An average shark will lose 30,000 teeth in their lifetime but as they have multiple rows of teeth which also allow more teeth to grow as they are lost. I find sharks amazing as they have a very very good sense of smell as they can smell one part microscopic proportion of blood in the ocean.

My next post will be about Seahorses.

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