首页> 美国卫生研究院文献>Proceedings of the Royal Society B: Biological Sciences >Can hook-bending be let off the hook? Bending/unbending of pliant tools by cockatoos
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Can hook-bending be let off the hook? Bending/unbending of pliant tools by cockatoos

机译:弯钩可以放开吗?美冠鹦鹉弯曲/放松弯曲工具

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摘要

The spontaneous crafting of hook-tools from bendable material to lift a basket out of a vertical tube in corvids has widely been used as one of the prime examples of animal tool innovation. However, it was recently suggested that the animals' solution was hardly innovative but strongly influenced by predispositions from habitual tool use and nest building. We tested Goffin's cockatoo, which is neither a specialized tool user nor a nest builder, on a similar task set-up. Three birds individually learned to bend hook tools from straight wire to retrieve food from vertical tubes and four subjects unbent wire to retrieve food from horizontal tubes. Pre-experience with ready-made hooks had some effect but was not necessary for success. Our results indicate that the ability to represent and manufacture tools according to a current need does not require genetically hardwired behavioural routines, but can indeed arise innovatively from domain general cognitive processing.
机译:用弯曲材料自发地制作钩形工具,以将篮子从Corvids的垂直管中提起,已被广泛用作动物工具创新的主要示例之一。但是,最近有人提出,动物的解决方案几乎没有创新性,但受到习惯性工具使用和筑巢习惯的强烈影响。我们在类似的任务设置上测试了Goffin的美冠鹦鹉,该美冠鹦鹉既不是专门的工具用户,也不是嵌套构建器。三只鸟分别学会了用弯曲的钩子工具从直丝上取下垂直管中的食物,四只鸟用了未弯曲的金属丝从水平管中取回食物。使用现成的钩子进行预先体验可以起到一定的作用,但并非成功的必要条件。我们的结果表明,根据当前需求来表示和制造工具的能力并不需要遗传上严格的行为常规,而是确实可以从领域一般的认知处理中创新地产生。

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