Tools and Teeth: Some Speculations Regarding Canine Reduction1
Tools and Teeth: Some Speculations Regarding Canine Reduction1
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工具和牙齿：关于犬齿减少的一些推测1
DOI：
10.1525/aa.1967.69.1.02a00070
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发表时间：
1967
影响因子：
3.5
通讯作者：
R. Holloway,
中科院分区：
文献类型：
--
作者：
R. Holloway,
文章首先批评了目前认为原始人的上颌犬齿减少与工具使用和工具制造之间存在因果关系的观点，文章认为，减少的发生是因为选择有利于不同的社会行为模式。在陆生灵长类动物中，性二型性和群内攻击性行为往往是相关的。荷尔蒙相互作用的转变被认为是为了减少攻击性而进行的选择导致了性二形性的减少。工具制造被视为许多认知重组之一，而不是犬类减少的原因因素。
Starting with a critique of current beliefs that maxillary canine reduction in hominids was causally related to tool-use and tool-making, the article suggests that reduction took place because selection favored a different pattern of social behavior. Sexual dimorphism and aggressive intragroup behavior tend to be related in terrestrial primates. A shift in hormonal interactions is suggested, such that selection for diminution of aggressiveness resulted in a diminution of sexual dimorphism. Tool-making is seen as one of a number of cognitive reorganizations, not as a causal factor in canine reduction.