Predatory fish are species that primarily hunt and consume other fish or aquatic animals for food. They have adaptations such as sharp teeth, keen eyesight, and streamlined bodies that help them catch their prey efficiently. Common examples of predatory fish include sharks, pike, and tuna. These fish play a crucial role in maintaining the balance of aquatic ecosystems. By controlling the populations of smaller fish and other organisms, they help ensure a healthy environment. Predatory fish are often at the top of the food chain, which makes them vital for the overall health of their habitats.