Flagellated, non-gamete phase associated with numerous non-animal or -plant eukaryotes.

Though one typically views spores as entities that are adapted for dissemination particularly through air, i.e., as one sees with fungi and non-, in fact there is very much a utility to being able to within especially , hence zoospores.

Alternatively, in the transition to living there is similarly a utility to "floating" through the .

Zoospores are associated with the life cycle of numberous protists, include particularly various multicellular algae, as well as the fungi known as chytrids. Often but not always they are haploid.