Caddis flies and mayflies undergo their metamorphosis into adults while anchored to floating wood.

Then, ammocoetes undergo a metamorphosis lasting several months.

By entering this stage, the person shows willingness to undergo a metamorphosis.

These nauplii feed on yolk reserves within their bodies and then undergo a metamorphosis into zoeae.

After several years in freshwater habitats, the larvae undergo a metamorphosis that allows young postmetamorphic lampreys to migrate to the sea or lakes and start the hematophagous feeding.