Carnivorous fish are species that primarily eat other animals, including smaller fish, crustaceans, and even insects. They have adaptations such as sharp teeth and strong jaws to help them catch and consume their prey. Examples of carnivorous fish include the great white shark, pike, and barracuda. These fish play a crucial role in aquatic ecosystems by maintaining the balance of populations among other species. Their predatory behavior helps control the numbers of smaller fish and invertebrates, ensuring a healthy environment. Understanding carnivorous fish is important for conservation efforts and managing fish populations in various habitats.