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 lucius ZOO 1
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).
Esox cisalpinus
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Esox cisalpinus, the southern pike or cisalpine pike, is a species of freshwater fish known from central and northern Italy, southeastern France and Switzerland, and it might also occur in the western
Northern pike
…been known to display a somewhat purplish hue; long illness is also the most common cause of male sterility. In Italy, the newly identified species Esox cisalpinus ("southern pike") was long thought to be a color variation of the northern pike, but was in 2011 announced to be a species of its own. Northern pike…
Esox cisalpinus
Esox cisalpinus Muse