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Mothers determine sexual preferences

机译:母亲决定性取向

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The extent to which behaviour is deter-mined by 'nurture' as opposed to 'nature' in mammals is controversial, although most recent interest has focused on genetic determinants. Here we investigate maternal influences on behavioural development by using the approach of cross-fostering between sheep and goats, which, like ourselves, form close individual attachment bonds with their offspring. We show that the emotional bond between a mother and her male offspring, rather than other social'or genetic factors, may irreversibly determine these species' social and sexual preferences. Maternal influences on female offspring are weaker and totally reversible. In both sexes, visual cues from the face are important for determining attraction.
机译:尽管最近的兴趣集中在遗传决定因素上,但是在哺乳动物中由“营养”决定行为的程度还是与“自然”相反。在这里,我们通过使用绵羊和山羊之间的交叉寄养方法研究母亲对行为发展的影响,该方法与我们自己一样,与后代形成紧密的个体依恋关系。我们表明,母亲与其男性后代之间的情感纽带,而不是其他社会或遗传因素,可能不可逆地决定了这些物种的社会和性取向。母体对雌性后代的影响较弱且完全可逆。在男女中,面部的视觉提示对于确定吸引力都很重要。

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