We know all about the many changes a woman's body goes through during pregnancy, but those nine months can physically impact proud papas too.
The disappearance of the Neanderthal Y chromosome from modern humans may be due to genetic incompatibilities that led to miscarriages, suggests the first-ever analysis of the male Neanderthal sex chromosome.
Sex strikes, as the one portrayed in a new Spike Lee film, have had a long history, albeit with mixed results.
Combine the anonymity of being inside a car with male aggression, and you get a dangerous recipe.
Punching cadaver arms support the theory that men’s hands evolved, not only for dexterity, but also for fist fighting.
Who you find attractive has surprisingly little to do with genetics or your upbringing.
Despite new findings that cast doubt on women soldiers, some military experts say women are better suited to the increasingly high-tech nature of war.
When grandmothers helped feed their grandchildren after weaning, their daughters could produce more children at shorter intervals.
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