The northern pike is a species of carnivorous fish of the genus Esox (pikes). They are commonly found in moderately salty and fresh waters of the Northern Hemisphere. They are known simply as a pike in Great Britain, Ireland, most of Eastern Europe, Canada and the U.S., although in the Midwest, they may be called a Northern.
Northern pike
Skull of a Northern pike
A pike in its natural habitat in Germany
Northern pike often rest near the bottom waiting for prey
Esox is a genus of freshwater fish commonly known as pike or pickerel. It is the type genus of the family Esocidae. The type species of the genus is Esox lucius, the northern pike.
Esox
A young E. lucius specimen — a "chain pickerel" in the original sense — in an aquarium.
Pike in Haus des Meeres, Vienna
Sign on the River Shannon, Ireland