它们清除触须是适应于攻击附近的珊瑚和保护群体。
Their sweeping tentacles are adapted to attack nearby corals and to protect the colony.
甚至少女鱼杀死鹿角珊瑚一部分群体后，剩余的部分仍然能存活。
Even after damselfish killed off parts of the staghorn colonies, the areas that remained were able to survive.
产于新疆吐鲁番地区的一种放射状群体珊瑚化石的花纹独特，颜色多种，具有很高的宝石学价值。
The radiated colony coral fossils with distinctive patterns and colours from Turpan, Xinjiang, is of highly gemmological value.
珊瑚是一种群体生物。
几个不同的珊瑚种类能能够从不同群体的珊瑚礁的结构来区分出来。
Several different species of coral can be present in the different colonies that form the reef structure.
在多米尼加岛斯科兹·海德村沿海地区，一组人数不断增加的探索多米尼加海生生物的潜水群体中的一员，得到了由珊瑚和海绵构成的水下花园的奖赏。
Off Scotts Head, Dominica Island, a sunken garden of sponges and coral rewards a visitor, part of a growing stream of divers discovering Dominica's Marine life.
珊瑚由单个的珊瑚虫组合而成。珊瑚虫是一种微小的生物，聚合在一起而形成一个群体。
Coral consists of individual coral polyps-tiny live creatures which join together to form colonies.
很多人都认同，我们正在看着一些物种在逐步消失；珊瑚虫群体也正在发上变化。
Most people agree that we're probably going to see extinctions of some species and that the composition of coral communities is going to change.
形成羽毛状群体的珊瑚。
形成羽毛状群体的珊瑚。
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