It’s all about the Alpha Male. Maybe we Nice Women just can’t fight our animal instincts. In nature, it’s all about reproducing and staying alive. And maybe human nature isn’t so different. Female animals are drawn to the Alpha Male—the one who is most likely to sire offspring, hunt for prey and aggressively fend off threats. Bad Boys usually have that Alpha Male thing going on; the problem is they’re trying to sire offspring (or at least practice siring offspring) with an entire pack of females.