(In the video I used mice as an example, but voles also give us a good indication about what factors shape our mating strategies…plus it works better with my pun below)
Meadow voles and prarie voles are 99% genetically identical. The meadow voles are promiscuous while the prarie voles are monogamous. Why the difference? Their environment. Meadow voles live in an environment where food is abundant, and where it doesn not get too hot or too cold; they don't need high parental investment from both parents to have a high survival rate. So the male voles take on a promiscuous strategy and go around spreading their seed. The prarie voles live in a less stable environment, so for the male to spread his seed is redundant because his offspring cannot survive with a single mother. Prarie voles have a high parental investment from both parents.
Monogamous voles have more vasopresson receptors. This is the hormone that enables pair-bonding. Scientists took genes from the vasopressin receptors of the prarie vole and injected it into the brain of the meadow vole..which caused it to pair bond with a single female.
Human's react to their environment as well when it comes to mating strategy, and if you look at a man' vasopressin receptors, you will get a good indication of how monogamous he will be.
WE ARE MEN NOT MICE? No, we are mice and voles.
In this video I discuss:
1. Mating Strategies- rape, promiscuity, polygyny, monogamy.
2. I give a better explanation for the rise of single moms than "they just want those benefits."
3. Why rape goes up during war.
4. Why polygyny is great for women while monogamy mostly benefits low-middle income men.
5. How our animal friends do it, and how we're not so different.
6. How testicles give us huge clues into our behaviour.
7. How monogamy can be measured by vasopressin.
1. Correction: It's elephant seals, not walrus 🙂
2. Polyandry in India is religiously inspired fraternal polyandry to avoid division of farming land.
Check out this book. It's awesome.
Wright, Robert. The Moral Animal: Why We Are, the Way We Are: The New Science of Evolutionary Psychology. New York: Pantheon, 1994. Print.
Female Mating Strategies
resource extraction, seeds of confusion, best of both worlds
2. Risks and benefits of lifelong monogamy
3. Awesomeness of polygyny