Think sharks live only in the ocean? Think again.
An 8-foot-long (2.4 meters) bull shark was pulled from the Potomac River, along the mid-Atlantic coast of the United States, by a group of Maryland fishermen yesterday (Sept. 3). But experts aren't at all surprised.
While you may think of sharks as ocean-dwelling predators, the reality is more complicated. Sharks do roam the open sea, but certain species, including the bull shark, also live in brackish (low-salinity) water and freshwater. So, finding one of these fish in the Potomac is "actually pretty normal," said Paul Genovese, a program manager for the fisheries service at the Maryland Department of Natural Resources. [On the Brink: A Gallery of Wild Sharks]
The shark caught yesterday was found in a large net off the shore of Coltons Point, Maryland, which is located right at the mouth of the Potomac, where the river opens into the Chesapeake Bay. In 2013, a fisherman pulled two bull sharks out of his nets at the nearby Point Lookout State Park.
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