Blue button colonies (IMAGE)
Caption
This photo shows different parts of the (sometimes not-so-blue) blue button: the chitinous float; the mantle; gonozooids, responsible for reproduction; and the dactylozooids, which catch food and defend. Unseen at the center is the gastrozooid, which digests food to provide nutrients to the whole colony.
Credit
2026 D. Wakita et al.
Usage Restrictions
Credit must be given to the creator. No derivatives or adaptations of the work are permitted.
License
CC BY-ND