What is the Difference Between a Shark and a Ray? -- John Carlson

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NOAA Fisheries biologist, John Carlson, answers the question, what is the difference between a shark and a ray?

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What is the Difference Between a Shark and a Ray? -- John Carlson

NOAA Fisheries biologist, John Carlson, answers the question, what is the difference between a shark and a ray?