Evolution And The Differences In Male And Female Behaviors

Our different behaviors are due to biology, instincts, and our (historically) different roles in life.
Our different behaviors are due to biology, instincts, and our (historically) different roles in life.

Lots of questions get asked about the opposite sex and why they think differently, act differently, or what different things then the asker’s sex, and everyone wants to know WHY. Why are men so obsessed with sex? Why are relationships so important to women? Why do guys show off? Why do women spend so much time on their appearance? Why are men protective over women? Why do women have so much empathy?


The answers to all of these questions and many more like them come down to our two primary biological imperatives: to SURVIVE and to REPRODUCE. Even in modern times, with the education and technology that we have available to us, and with modern societal standards, our daily behaviors are STILL heavily influenced and affected by our biological instincts that have kept humans going as other species (including other humanoids) went extinct.

Darwin helped define the language and greatly expand our knowledge on evolution and Natural Selection.
Darwin helped define the language and greatly expand our knowledge on evolution and Natural Selection.

Charles Darwin called what he observed during his studies “Natural Selection” - how any trait that helps or improves survival or reproduction is going to be reinforced, because people with those traits will tend to survive and reproduce, while those that lack the trait will be less likely to do so. Over generations, these traits evolve and strengthen or weaken. If things go the wrong way, the species tends to die out, and if they go the right way, the species thrives and grows. Natural Selection and the traits it caused humans to develop - both physical and behavioral - are still with us and affect us daily.


If you forget about the last 300 years and you look at how people lived for all of history prior to that, it’s easy to see that men and women had very different roles in daily life, reflecting their roles in survival and in reproduction.

Hunting dangerous/deadly game was one of many roles for men throughout history.
Hunting dangerous/deadly game was one of many roles for men throughout history.

Men tended to do the “heavy” and dangerous work, farming, hunting, smithing, mining, construction, woodcutting, and soldiering. It wasn’t uncommon for men to be die at young ages - fighting in wars, being injured during work, or from conditions like “black lung” from working in mines. Men were somewhat expendable, and their role was “heavy work” and “protection of the family.”


Women generally worked in the home and on the farm - feeding and caring for the children and animals, tending to the garden (most homes had one), cooking, sewing, and cleaning the home. Nurturing was a big components of the woman’s role.

Like bees, a man's role in reproduction is to fertilize - a job that can be completed in mere minutes.
Like bees, a man's role in reproduction is to fertilize - a job that can be completed in mere minutes.

Roles related to reproduction were also very different. Men are pollinators - their mission is primarily to fertilize as many eggs as possible, and from a genetic/Natural Selection perspective, the more women he impregnates, and the more diverse their genetics are, the more likely at least some of his children will survive illnesses and genetic flaws that he may carry, because some of those women will have a resistance to those diseases that he lacks. This is why men are attracted not just to having sex with many women, but with DIFFERENT women - women of different races and tribes - because that improves genetic diversity, which improves survival. It’s also important to note that men can fulfill their role in reproduction in just a few minutes, and he can potentially impregnate several women per day, every day - so absent other factors, sex only affects a man for an hour (being generous).

Women's role in reproduction is far more significant, both in personal risk and in time, affecting years of her life at minimum.
Women's role in reproduction is far more significant, both in personal risk and in time, affecting years of her life at minimum.

Women’s role in reproduction is vastly different. For a woman, a pregnancy is going to directly impact her for nearly a year, during which she won’t be able to be pregnant again - and after giving birth, she’ll need to spend at least 2 years feeding and caring for the child before it can survive even a few minutes on its own. During much of this time, the woman is vulnerable, as it can be nearly impossible to either fight or flee during the late stages of pregnancy or with a young infant. These factors all drive women to seek the stability and security of a relationship - preferably from a man with strength and resources - because without that, she and her child might not survive.


Those traits became instincts over time, for both men and women. Scientists say that it takes about 1000 generations for behavior to become instinctual, which means it takes about 20,000 years to make changes to instinctual behavior for humans. That’s why those instincts and behaviors are still with us today, despite life being much different.


Today, we have advanced healthcare and birth control and many of us have stability that couldn’t be imagined a few hundred years ago - war isn’t in our neighborhoods on a regular basis. That makes it easy to think that past history isn’t important - but it is, because it informs the instincts that we have today.

Stealing women from another group or tribe has been common throughout history.
Stealing women from another group or tribe has been common throughout history.


Why are men so visually attracted to women? Because for much of human history, one tribe would raid another for women (genetic diversity), and the target would be nubile women - women who were young but post-pubescent and therefore at the start of their reproductive years, and most likely to be able to bear the man many children. Being able to identify these women by the presence of breasts and prominent hips from a distance was an important skill when you were literally risking your life to obtain them.

Historically, a relationship meant a much better chance for a woman's survival, as well as her children's.
Historically, a relationship meant a much better chance for a woman's survival, as well as her children's.

Why do women want relationships and not just casual sex? Because sex had an impact on women that is a orders of magnitude greater than men - women could get pregnant, carry the child, and then would have to care for the child and provide protection for it until it could protect and care for itself - which meant in a historical context that she needed a strong man with resources to protect her and provide for her and her children. Women didn’t want to be vulnerable (pregnancy) or have her children vulnerable, and because prior to the 1960s, sex more-or-less always led to pregnancy before long, most women did their best to keep sex within relationships (often within marriage). That was also critical in many societies, where societal rules meant that only “legitimate” children were entitled to the man’s family name and to inherit his property or titles (if any).


No matter what behaviors confuse you because they are different from your own when it comes to relationships or sex or just behaviors and priorities, most of them will make sense if you remember to think of them in the context of Natural Selection and the different roles that men and women have historically had in both daily survival and in reproduction. Those differences are still the basis of our instincts and desires and behavior today, despite the relatively recent changes in modern society in much of the world. Even though we think we’ve adjusted to modern life, our instincts definitely have not, and will not anytime soon.

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  • Hmm... like 40% correct.

  • None of this will matter in 5 million years when humans evolve into the Morlocks and Eloi.

    Evolution And The Differences In Male And Female Behaviors
    • n the year 105105 If man is still alive If robot can survive They may find In the year 252525 The backwards time machine still won't have arrived In all the world, there's only one technology A rusty sword for practicing proctology In a future year that ends with a 20 A shlubby merman's gonna try to get chummy He may look like a watery wimp When in fact he's a bloodthirsty shrimp In the year 1,000,000 ½ Humankind is enslaved by giraffe Man must pay for all his misdeeds When the treetops are stripped of their leaves. Whoa ohhhh...

  • True , very true , awaiting the usual pink downvotes. There are huge fundamental difference between the genders , I am a lone parent to a teen / tween boy and girl , these differences are apparent in early infancy. Hence most hetero relationships have some level of conflict , the genders are very differently wired , with different needs and wants.

  • This just isn’t true 🚮

    • Science is science. It's funny that some women can't take it.

    • Feel free to present us YOUR "better" explanation.

    • I can take factual science this is just false info? “Women don’t like casual sex” so who are those guys that are having casual sex doing it with? A ghost? “Guys are so visually attracted to girls” there is a lot of gay men that don’t find women attractive. He just typed out his butt. Simple.

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  • I like remembering instincts. But then i remember that these days, men and women can change bodies and have kids in a way that general society would deem unconventional.

  • Nice mytake

  • Interesting take

  • Oh yay
    Another lets attribute the results of social conditioning socialas biological imperatives...
    This site surely needs more of that

  • MrOracle, i appreciate the work you've done here, and anyway i think its a good read.
    funny thing that there are so many haters of reality, dont feel bad for the sarcastic reviews (tapping your shoulders as a bro👋)

  • 🤔🤔🤔🤔🤔

  • That is some dumb ass shit.

    • I only read the first few sentences and felt like it would most probably be that. Thanks for sparing me the painful read.

  • Can't wait for the sequel: Apache Attack Helicopter Behaviors

  • Interesting read, times sure have changed from back then , we still have our natural differences but that’s a good thing, we can’t all act or think the same , we need to embrace our differences or it just won’t work. Everyone is unique in the opposite sex

  • Very well thought

  • I think there is a huge amount of really terrible "evolutionary theory". A vast amount of what you read out there is simply bullshit, non-scientific hand-waving speculation and "just-so stories".

    But I put "evolutionary theory" in quotes, because almost none of that actually comes from evolutionary theorists, who are as exasperated and disgusted at this nonsense as you (probably a thousand times more so, actually). Genuine evolutionary theory is testable, experimentally-based, often quantitative.

    But most reporters don't like experimentally-based stuff, because it's hard to explain. They don't like quantitative stuff, because math is hard for their Barbie-doll brains. And they don't even know what "testable" means, let alone why it's important. And so you don't hear about real evolutionary theory, you hear about the hand-waving, exciting speculation that's actually bullshit.

    And "evolutionary psychology" is the worst of the worst. This is being driven by people who know very little about evolution -- even if they are scientists in one field, they rarely show any understanding of even the most basic evolutionary theory. In principle, evolutionary psychology could be testable, experimentally-driven, quantitative, and there probably even is a little bit of that in the field, But the piles of BS have driven out, or at least swamped, most of the serious workers, leaving the publicity hounds shouting out their nonsense to news hosts with shiny plastic smiles.

  • Wow lit of info

  • Good take

  • Welp this is a nice pile of trash you typed up

    • Can't accept evolutionary biology?

    • Feel free to present us YOUR "better" explanation.

    • @kilojs I can but this is just crap.

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  • Obviously you have not read Stephen Jay Gould.

  • Right on man

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