Greenland sharks and bull sharks are saltwater sharks that can live in freshwater, and have been reported in rivers. Lake Nicaragua has freshwater sharks. No shark species is native to Loch Ness, any sharks found there would be intruders. read more
The Greenland Sleeper Shark — Somniosus microcephalus — is a rather large, and strange, species of shark native to the icy waters of the North Atlantic, and is especially common in the region around Iceland and Greenland. read more