With no natural predators on the island, the herd increased rapidly.
由于岛上没有天然食肉动物，牧群的数量迅速增加。
Natural predators are cheaper.
天然食肉动物更廉价。
This is a talent we share with all natural predators.
这是一个人才，我们同所有的天敌份额。
As such, the blue whale has virtually no natural predators.
像这样，蓝鲸已经实际上没有自然的捕食者。
These invasive species – brought to the island by people – have no natural predators.
这些由当地人引进的入侵物种没有天敌。
Many invasive species are successful because they have no natural predators in their new environment.
由于在新环境中没有天敌，很多入侵物种得以成功入侵。
Many invasive species are successful because they have no natural predators in their new environment.
由于在新环境中没有天敌，很多入侵物种得以成功入侵。
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