Esox
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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 lucius ZOO 1
A young E. lucius specimen — a "chain pickerel" in the original sense — in an aquarium.
Fossil specimen of Esox kronneri, the earliest known pickerel
Pike in Haus des Meeres, Vienna
Northern pike
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The northern pike, also known as jack, northern or simply pike, is a species of carnivorous fish of the genus Esox. It is commonly found in fresh waters of the Northern Hemisphere.
Esox
…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 have a fossil record extending back to the Paleocene. Modern large pike species are native to the Palearctic and Nearctic…
Skull of a northern pike
A pike in its natural habitat in Germany
The tiger muskellunge is a hybrid of the northern pike and its North American relative, the muskellunge (E. masquinongy).