Abstract
Any trait that is advantageous in the normal business of living will make its possessor a more advantageous mate, thus providing selection pressure favoring the trait of preferring to mate with an individual having such traits. In many cases such a feature will have contributed to radiation into a new niche. It will also distinguish a newly evolved species from its ancestral species, providing a basis for reproductive isolation. Consequently recently evolved generally adaptive features are likely to be sexually stimulating or attended to in mate selection. Therefore, there is a good possibility that there are some biologically based mating preferences and sexual responses in humans that are expressed in most cultures.
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