The snakehead fish is a freshwater fish known for its elongated body and distinctive snake-like appearance. Native to parts of Asia and Africa, it has become an invasive species in some regions, particularly in the United States. Snakeheads can breathe air, allowing them to survive in low-oxygen environments and travel short distances on land. These fish are carnivorous and can grow quite large, with some species reaching lengths of up to 3 feet. They are known for their aggressive behavior and can significantly impact local ecosystems by preying on native fish and competing for resources.