character: Dr. Sylvia Earle
topic: Marine Conservation and Shark Biology
subject: Science
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character: David Shiffman
topic: Shark Research and Conservation
subject: Science
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character: Dr. Demian Chapman
topic: Shark Species and Their Preservation
subject: Science
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character: Ellis E. F. W. H. S. Kincaide
topic: Shark Species Diversity and Conservation Efforts
subject: Science
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