盘点八种能识数的动物 食蚊鱼计算依靠比率(3)
2009-06-25 09:31:38
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3 马
聪明的汉斯是二十世纪初的一匹德国马,它令欧洲人惊叹不已。因为它能解答数学问题。然而,随后的一次科学试验证明,汉斯只是对训练者的肢体动作做出反应,事实上它并不会计算。
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