尽管哪些物种是捕食者，而哪些物种又是被掠食者显而易见，但是让多种类型的肉食性动物共存的摄食习性的微妙法门却很少在化石记录中保存下来。

Though it is obvious which species were predators and which prey, the subtle specialisations of feeding habit that allow many types of carnivore to co-exist are rarely preserved in the fossil record.

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