Staghorn coral (Acropora sp.) corallites. Each corallite houses an single coral polyp. The polyps emerge at night to filter plankton from the water. The polyps secrete a mineral around themselves for protection and support. The combined secretions of thousands of polyps build up a large rocky structure around the colony | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Daniels, Ethan |
Taille de l’image : | 5125 px × 3417 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |