Since men age faster and die earlier than women, these findings suggest that "at the time when current human physiology evolved, perhaps around the late Stone Age, polygynous breeding was the norm," Clutton-Brock told LiveScience. "Of course, this doesn't provide any justification for polygyny or promiscuity now for males."
Needless to say, I am skeptical of this bit of scientific moralizing. If we are simply evolved animals, why worry about whether you live or die young? Particularly if promiscuity or polygyny makes you happy?
Point is, without the Creator writing morality in our hearts - and directly in Scripture - there would be no reasonable purpose for faithful, monogamous marriages.
Good to know that nature supports the Lord's morality, though...imagine that!