Deecke博士认为,那只熊自制梳子可能是想让自己舒服,而不是为了美观。
But crucially for the concept of tool-use, the animal s rejection of the first rock it picked upshows a discriminating understanding of what was required to get the right amount ofscratching from a comb;
但是,那只熊没有用它捡到的第一块石头,这说明它有能力判断子什么样的梳子才好用;
which rock, in other words, was the tool for the job.
换言之,就是哪块石头可以拿来当梳子。这一点对判断动物是否会使用工具至关重要。
An important question from a biological point of view is whether this animal s behaviour isunique.
在此,有一个很重要的生物学问题:是不是只有这一只熊会使用工具?
Other tool-using mammals are social species.
其他会使用工具的哺乳类动物都是群居动物,
That means one individual s chance invention is easily copied by others of its group,resulting in a primitive culture.
也就是说个体偶然的发明很容易被群体里的其他成员模仿,从而形成原始的文化。
Grizzly bears have not been considered particularly sociable in the past, but if others inGlacier Bay are seen combing themselves in this way that view might have to change.
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