The flathead catfish is a large freshwater fish native to North America, primarily found in rivers and lakes. It is known for its distinctive flat head and elongated body, which can grow up to 5 feet long and weigh over 100 pounds. The fish typically has a yellowish to brownish coloration, helping it blend into its natural habitat. Flathead catfish are primarily nocturnal predators, feeding on smaller fish, crustaceans, and even small mammals. They are popular among anglers due to their size and fighting ability, making them a sought-after species for sport fishing in many regions.