对猪行为的解释有两种,一种认为猪很聪明,真的知彼知己,能判断其他猪的内心,科学上称它具有“theory of mind”。另一解释是猪没这么聪明,只是一般学习记忆:如果B直奔食物藏匿点,就会很快遭到A的打击排斥,B学会不自讨苦吃,所以压抑自己走向食物藏匿点的意愿,绕道徘徊。目前的实验,没有确定到底哪种解释正确。猪的智力到底有多高,尚待进一步研究。
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