Esox is a genus of fish commonly known as pikes, which are found in freshwater habitats across North America, Europe, and Asia. These elongated fish are characterized by their sharp teeth, pointed snouts, and streamlined bodies, making them effective predators. Pikes typically inhabit lakes, rivers, and marshes, where they often lie in wait for smaller fish and other prey. There are several species within the Esox genus, including the northern pike (Esox lucius) and the muskellunge (Esox masquinongy). Pikes are popular among anglers due to their aggressive feeding behavior and the challenge they present when caught. They play an important role in their ecosystems as top predators, helping to maintain the balance of fish populations.