Larva Larva A larva (plural: "larvae" ) is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle. The larva's appearance is generally very different from the adult form ("e.g." caterpillars and butterflies) including different unique structures and organs that do not occur in the adult form. Their diet may also be considerably different. Larvae are frequently adapted to environments separate from adults. For example, some larvae such as tadpoles live almost exclusively in aquatic environments, but can live outside water
California toad dorsal melanin) than the boreal toad. It has a wider head, larger eyes, smaller feet, and a weaker development of the margins along the dorsal stripe. The largest western toad larvae at 56 mm is also of the California toad. The toad has a wide range of dorsal coloration, from light gray to green to dull black; most however are brownish gray. The California toad, as a western toad, walks rather than hops The adult size range is two to five inches. The California Toad occurs from all of Northern California and down south into Baja California. There are scattered