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Bull sharks have been known to travel hundreds of miles up rivers, both to hunt and to have pups . It’s difficult to know exactly how many bull sharks travel and reside in rivers, as they prefer murky water which makes them difficult to observe. Scientists are also just beginning to learn more about bull sharks and their habits through shark tagging. While it’s scary to think of a shark in a river, very few human-bull shark interactions have been recorded in fresh water. Most bull shark bites occur in shallow ocean waters. It’s hard to say whether this is because bull sharks are less likely to attack in fresh water or because people are more likely to swim in shallow ocean waters than in shallow river waters. Since bull sharks give birth in fresh water, it’s likely that many bull sharks in rivers and streams are young.

It’s believed that most bull sharks found in rivers are quite young.

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