You may have seen the touristy T-shirts that declare it: "The Great Lakes: Unsalted and Shark-Free." That's absolutely true. There is no verifiable account of sharks ever reaching the Great Lakes, and ...

A new pattern in shark behavior has experts sounding the alarm, and it may have everything to do with an overheating planet. Bull sharks are known to be able to swim between saltwater and freshwater, ...

Researchers supported by FAPESP recorded lemon sharks (Negaprion brevirostris) preying on an invasive species, the jaguar cichlid (Parachromis managuensis), for the first time. This observation was ...

Bull sharks go by many names. In France they're called requin bouledogue. They're known as the Tiburon in Spain; the Zambezi in South Africa; the Ganges shark in India; the Nicaragua shark in Central ...