即使从来没有见过同类动物，它们也会发出恰当的叫声、声响和表情。
They will make the right kind of cries and sounds and expressions even if they have never seen another animal like themselves before.
当地盘性的动物或鸟类侵入别的同类动物的领地时，后者只会做一些表示敌意的姿态以吓跑入侵者。
When a territorial animal or bird intrudes on the territory of another creature of the same species, the latter will only perform some hostile gestures to warn off the intruder.
当地盘性的动物或鸟类侵入别的同类动物的领地时，后者只会做一些表示敌意的姿态以吓跑入侵者。
When a territorial animal or bird intrudes on the territory of another creature of the same species, the latter will only perform some hostile gestures to warn off the intruder.
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