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首页> 外文期刊>PLoS Biology >What Are Little Boys and Girls Made of? The Origins of Sexual Dimorphism
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What Are Little Boys and Girls Made of? The Origins of Sexual Dimorphism

机译：小男孩和女孩由什么制成？性二态性的起源

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摘要

Snips and snails and puppy dogs' tails, or sugar and spice and all things nice? From our animal-centered point of view, the distinction between males and female can seem rather obvious—many animals have male individuals and female individuals whose differences are often pretty evident at a glance. However, we're also aware of more exotic variations like hermaphroditism and Tiresias-like midlife gender-bending. Indeed, the further we get from the birds and the bees, the more it becomes unclear what exactly we mean by “male” and “female.” Are these just tags, or are they fundamentally different? And if the latter, how did this fundamental difference come to be?
机译：剪发，蜗牛，小狗的尾巴，糖和香料等等，一切都很好吗？从以动物为中心的角度看，雌雄之间的区别似乎很明显-许多动物都有雄性个体和雌性个体，它们的差异通常一目了然。但是，我们也注意到更多异国情调的变异，如雌雄同体和中亚性别的弯曲性。确实，我们与鸟类和蜜蜂之间的距离越远，我们对“雄性”和“雌性”的确切含义就越不清楚。这些只是标签，还是根本不同？如果是后者，这种根本差异是如何产生的？

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