One idea to explain this is that in animals such as humans, where there is a lot of maternal care, females find physical aggression less affordable.
对这个的一个解释是在人类这样需要有大量的母性关怀的动物中，女性认为身体上的攻击性是很难承担的。
One idea to explain this is that in animals such as humans, where there is a lot of maternal care, females find physical aggression less affordable.
对这个的一个解释是在人类这样需要有大量的母性关怀的动物中，女性认为身体上的攻击性是很难承担的。
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