Human ability to detect kinship in strangers' faces: effects of the degree of relatedness.


The resemblance between human faces has been shown to be a possible cue in recognizing the relatedness between parents and children, and more recently, between siblings. However, the general inclusive fitness theory proposes that kin-selective behaviours are also relevant to more distant relatives, which requires the detection of larger kinship bonds. We… (More)
DOI: 10.1098/rspb.2009.0677

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