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. ancestral esox species had been present in laurentia (which later became north america) and eurasia since the paleogene. modern large pike species are native to the palearctic and nearctic realms, ranging across northern america and from western europe to siberia in north asia. pikes have the elongated, torpedo-like shape typical of predatory fishes, with sharply pointed heads and sharp teeth. their coloration is typically grey-green with a mottled or spotted appearance with stripes along their backs, provi...

Source: Wikipedia