The Northern Pike (Esox lucius) is a fierce predator known for its sharp teeth and aggressive nature. These fish can grow up to 4 feet long and weigh over 30 pounds. They have a streaml... The Northern Pike (Esox lucius) is a fierce predator known for its sharp teeth and aggressive nature. These fish can grow up to 4 feet long and weigh over 30 pounds. They have a streamlined body, olive green coloration with white spots, and a duckbill-shaped snout. Northern Pike inhabit cool, vegetated waters in lakes and rivers where they ambush prey such as smaller fish, frogs, and even small mammals. Their powerful strikes and fighting ability make them a favorite among anglers.Click here to read more about Northern Pike.