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 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Daniels, Ethan |
Bildgröße: | 5125 px × 3417 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |