River otters eat fish, shellfish, crustaceans, snails, beetles, amphibians, and other small mammals. They are the ones who feed on secondary consumers. Secondary consumers are mostly carnivores, from the Latin words meaning “meat eater.” In the Everglades, egrets and alligators are carnivores. e. secondary consumers. Secondary Consumer: Cheetah, lions, snakes, and lemurs Secondary Consumer eat herbivores, like a zebra,elephant, or antelope. This breakdown creates soil. They usually eat meat and are termed as predators. Secondary consumers. In the Antarctic food chain krill are primary consumers and baleen whales, penguins, seals and many kinds of fish and other birds are secondary consumers when feeding on krill. This group also includes many species of coral eaters, such as butterflyfish, filefish, triggerfish, and damselfish. However, not all secondary consumers ...