当一只动物攻击另一只动物时，它会做出最明显的攻击行为。
When one animal attacks another, it engages in the most obvious example of aggressive behavior.
这些看似非典型性的攻击行为可能是动物被圈养的结果。
This seemingly uncharacteristic aggression may be the result of captivity.
据梅纳德说，大猩猩并没有表现出对小孩的攻击行为，但是他说它在焦躁不安的情况下是个“极其强壮”的动物。
According to Maynard, the gorilla did not appear to be attacking the child, but he called it 'an extremely strong' animal in an agitated situation.
这个发现成为里程碑性的标志，它为攻击行为的生理学研究和神经系统是怎样引发不同行为的研究提供了可能的新型动物模型。
The findings mark a milestone in an unlikely new animal model for understanding the biology of aggression and how the nervous system gives rise to different behaviors.
大部分动物看到自己的影像时通常都会做出攻击行为。但有趣的是，只有与人类比较接近的动物能够辨别出自己的影像。
Most animals respond to see their own reflection with aggressive behavior, but interestingly, only a few animals like humans are able to recognize their own reflection.
过去的研究也发现动物之间增大的压力以及种内和种外攻击行为都是由人类引起的。
Past research has found increased stress and more intra- and inter- species aggression among animals that have been fed by humans.
过去的研究也发现动物之间增大的压力以及种内和种外攻击行为都是由人类引起的。
Past research has found increased stress and more intra- and inter- species aggression among animals that have been fed by humans.
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