珊瑚是最长寿动物:珊瑚虽非树木,但也可用珊瑚碳酸钙“骨骼”的“年轮”判断年纪。只要环境保持良好,珊瑚可以活1000年以上,堪称“最长寿的动物”。珊瑚是肉食动物珊瑚虫和水母、海葵、水螅一样,都属于“刺细胞”动物,包括口部、触手、肠腔等部位,体表有刺细胞(以触手部位最多),可射出毒液捕食小生物,为肉食动物。颜色来自共生藻珊瑚体内富含单细胞共生藻, Corals are the longest-lived animals: Corals, though not trees, can also be aged with the “annual rings” of coral calcium carbonate. As long as the environment is well maintained, corals can live for more than 1,000 years, which is called the “longest-lived animal”. Coral is a carnivorous animal Corals and jellyfish, anemones, water, like, are “stinging cells” animals, including the mouth, tentacles, intestine and other parts of the surface of the stinging cells (tentacles most), can emit venom Predation of small creatures, carnivores. Color from symbiotic algae Coral body is rich in single-cell symbiotic algae,