The International Union for the Conservation of Nature reports 35% of all shark species are threatened with extinction. The primary reason is overfishing; shark meat and fins are highly sought. That research has helped expand the number of shark species now regulated by CITES. Cardeñosa said when he got started in the field, there were only five or six shark species regulated by the CITES agreement. How you can help sharksOne of the easiest ways to help sharks and all marine life is to try to consume seafood from sustainable sources.

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