the immature form of a frog is called a tadpole
tadpole is larva. little_grass_frog is chorus_frog. tailed_frog is frog. pollywog is immature_frog. mutant_frogs has legs_growing_out_of_butts tongueless_frog is frog. pickerel_frog is frog. short_footed_frog is tree_frog. grass_frog is true_frog. barking_frog is frog.