Does evolution's dual mating hypothesis have legs?

UCLA psychologist Martie Haselton weighs in on the dual mating hypothesis, a controversial theory in human evolutionary history.

So, a woman could have partnered in the short-term with a mate who could provide high fitness genes for her offspring, perhaps engaging in those kinds of matting in secret, but maintain her relationship with her long-term partner.

Haselton, who is a pioneer in research on studying behavioral changes at ovulation, has conducted studies that found that during high fertility times of the month, women do show a preference towards men with “sexy” traits such as masculine build, symmetrical features, deeper voice, even scent.

It dosen’t mean [a woman] does not love [her] long-term mate, it’s just this vestige from the ancestral past.