Owing to such adaptations the similarity of the larvae of allied animals is sometimes greatly obscured; especially when there is a division of labour during the different stages of development, as when the same larva has during one stage to search for food, and during another stage has to search for a place of attachment.
Egokitzapen horiek direla-eta, oso ilundurik egon ohi da zenbaitetan kideko animalien larben arteko antzekotasuna, garapen-aldi ezberdinetan lan-zatiketa gertatzen denean batik bat; hala nola, larba berberak aldi batean janaria bilatu behar duenean eta beste aldi batean non finkatu bilatu behar duenean.