Baby frogs are the young of frogs, which are amphibians. Tadpoles are the larval stage of frogs, which is the stage between egg and adult. They have a fish-like appearance and are usually found in shallow water. Tadpoles undergo metamorphosis, which is the process of changing from a larva to an adult. During this process, they develop legs, lungs, and other features that enable them to live on land. Baby frogs, or tadpoles, are the first stage of a frog's life cycle.