Tag: sexual intercourse

Study Offers Evolutionary Perspective on After-Sex Behaviors

There’s evolution at work when she wants to cuddle after sex (and he, well, doesn’t).That’s the conclusion of a new study, “Sex Differences in...

Girls’ early puberty linked to unstable environment via insecure attachment in...

Girls are hitting puberty earlier and earlier. One recent study found that more than 10 percent of American girls have some breast development by age 7. This news has upset many people, but it may make evolutionary sense in some cases for girls to d...

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