Wednesday, April 20, 2016

shark skin

shark skin: shark skin can survive disses. Also sharks have lots of scares on their backs when sharks fight and sharks are good at killing other animals for food. also if you  a put your hand on a sharks nous the shark will stay still and not bite. The skin of the shark is unique in many ways .it is characterized by its grey color. they have a central pulp cavity, denting and an outer. Dermal


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