Amphibian
Amphibia are predators. They mostly eat live invertebrates and animals that do not move too quickly. These include caterpillars, earthworms, crayfish, water beetles, snails and dragon fly larvae.p667 Many amphibians use their sticky tongues to catch their prey. They swallow the animal whole, but may chew it just a bit for it to go down their throats. The Ranidae family and the Ceratophrys genus eat almost anything they can fit into their mouths.p668 These include rodents, birds, ducklings, small fish and small mammals. Most frogs are cannibalistic, and may eat each other if food is nowhere to be found. Some amphibians may even eat their own tadpoles and eggs if there is no food for them.