and the polyps feed by snaring passing morsels with their tentacles. 珊瑚虫利用触手抓食经过它身边的食物

32. There are individual reefs in Indonesia that contain almost as many kinds of fish as live in the whole of the Caribbean.
    印度尼西亚的这些珊瑚礁 所容纳的各种鱼类几乎跟全加勒比海一样多
33. There are also ten times the number of coral species.
    而且珊瑚物种也要多十倍
34. Corals thrive in these waters with the help of microscopic plants, algae that grow within the tissues of the polyps
    珊瑚在一种微生植物的帮助下生长-海藻 是居住在珊瑚虫里的一种共生藻
35. and the polyps feed by snaring passing morsels with their tentacles.
    珊瑚虫利用触手抓食经过它身边的食物
36. At night, the algae are inactive but then, the polyps put out even more tentacles
    到了晚上,共生藻停止工作 珊瑚开始释放更多的触手
37. so coral in effect feeds around the clock.
    这样,珊瑚虫可以昼夜不断地有效进食
38. This well balanced alliance brings benefits
    这种完美平衡

来自《行星地球 第一季 第九集 Planet Earth S01E09 海洋》第 35 行