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Scientists Confirm Sharks Travel More than 1,000 Miles up the Mississippi River
Sharks are saltwater predators that live in the ocean. However, it turns out that a unique shark species, the bull shark, tends to swim outside the box—and right into the freshwater of the ...
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Are There Sharks in the Great Lakes? Unlikely, But Not Impossible
Most shark species require saltwater to maintain the internal salt balance they need to survive. The freshwater environment ...