The crown of thorns starfish is large, twenty-five to thirty-five centimeters in diameter, and has seven to twenty-one arms that are covered in spines.
棘冠海星很大，直径长达25到35厘米，有7到21条手臂，上面布满了刺。
Crown of thorns starfish normally live in high population densities.
刺冠海星通常生活在聚居的环境中。
The crown of thorns starfish is a coral reef predator that preys on coral polyps.
刺冠海星是一种以珊瑚虫为食的珊瑚礁捕食者。
Now let's focus on a specific example of a natural predator that can cause a lot of damage to coral reefs—the Crown of Thorns, or CoT starfish.
现在，让我们来看一个自然捕食者的具体例子，它会对珊瑚礁造成很大的伤害——那就是刺冠海星。
Other environmental pressures to the reef and its ecosystem include water quality from runoff, climate change accompanied by mass coral bleaching, and cyclic outbreaks of the crown-of-thorns starfish.
其他对于大堡礁及其生态系统的环境压力来自径流的水质问题，伴随着大规模珊瑚白化的气候变化以及棘冠海星的周期性爆发现象。
The crown-of-thorns starfish preys on coral and large outbreaks of these starfish can devastate reefs.
棘冠星鱼会捕食珊瑚虫，大量的海星会摧毁珊瑚。
The crown-of-thorns starfish preys on coral and large outbreaks of these starfish can devastate reefs.
棘冠星鱼会捕食珊瑚虫，大量的海星会摧毁珊瑚。
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