Natural predators are animals that hunt and consume other organisms for food. They play a crucial role in maintaining the balance of ecosystems by controlling prey populations. Common examples of natural predators include lions, eagles, and sharks, each adapted to their specific environments and hunting techniques. These predators help ensure that no single species dominates an ecosystem, which can lead to overpopulation and depletion of resources. By preying on weaker or sick individuals, natural predators also contribute to the health of prey populations, promoting genetic diversity and resilience within the ecosystem.