You're probably familiar with the great white shark, but how much do you know about these other big sharks: blacktip, tiger, sand tiger, galapagos, and whale? Those are just five of roughly 500 shark species found in our oceans. And they're doing their part to keep the oceans healthy by keeping fish populations in check.
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https://www.nationalgeographic.com/magazine/2016/06/shark-species-family-tree-ocean-ecosystem-predator/

5 Big Sharks That Rule the Sea | Nat Geo Wild
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