If you had to choose only one of these three, which of these "lovestyles" makes the most sense from a biological perspective?
polyandry - love for many men. The woman has more than one husband.
polygyny - love for many women. The man has more than one wife.
polyamory - love for many. Many loves for either gender.
None of the above. I think as humans, we're better suited to serial monogamy. Yes, there are some "enlightened" people out there that can have "open relationships" that are actually stable, but generally speaking, most people love others jealously (i.e. they don't want them fooling around) However, most people also don't love the same person their entire lives.
We have many intuitions in our life and the point is that many of these intuitions are wrong. The question is, are we going to test those intuitions?
-Dan Ariely