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
Common toad warn the wearer of attempts to poison them. Shakespeare mentioned this in "As You Like It": Mr. Toad Esq. is one of the main characters in the children's novel "The Wind in the Willows", by Kenneth Grahame. This has been dramatized by several authors including A. A. Milne who called his play "Toad of Toad Hall". Mr. Toad is a very conceited, anthropomorphic toad and in the book he composes a ditty in his own praise which starts like this: George Orwell in his essay "Some Thoughts on the Common Toad" described the emergence of the common toad from hibernation