Coral islands in Australia's Great Barrier Reef,satellite image. These islands were formed millions of years ago by coral. Coral is made of many primitive sea animals which leave behind a limestone skeleton after their death. The islands are surrounded by lagoons,enclosed by coral reefs. The Great Barrier Reef is a vast ecosystem made up of similar islands and coral reefs,stretching for 2000 kilometres along Australia's north-east coast | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Planetobserver |
Bildgröße: | 3543 px × 3543 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |