Little Leviathan: A Small Shark Shows Its Teeth

[riky]

Little Leviathan: A Small Shark Shows Its Teeth
      

While the sleek, massive fish that spring to mind when most people think of sharks are indeed importantâ€"many are apex predators, essential components of the ecosystems of which they are a partâ€"they represent only a portion of the some 400 species that, along with the roughly 500 species of rays and skates, comprise the subclass Elasmobranchii.
         

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