Homosexuality vs Evolution

Discussion in 'Human Science' started by Mandana, Aug 1, 2010.

  1. Mandana Registered Senior Member

    Messages:
    34
    Where does homosexuality stand concerning the theory of evolution?
     
  2. Google AdSense Guest Advertisement



    to hide all adverts.
  3. Dywyddyr Penguinaciously duckalicious. Valued Senior Member

    Messages:
    19,227
    Last edited: Aug 1, 2010
  4. Google AdSense Guest Advertisement



    to hide all adverts.
  5. Orleander OH JOY!!!! Valued Senior Member

    Messages:
    25,817
    Yeah....I don't understand the question. And is it all homosexuality or just male?
     
  6. Google AdSense Guest Advertisement



    to hide all adverts.
  7. Light Travelling It's a girl O lord in a flatbed Ford Registered Senior Member

    Messages:
    1,154
    How about homosexuality is evolutions answer to world overcrowding, more and more homosexual couples = less children = problem solved. Well done nature.


    Just a thought…
     
  8. spidergoat Liddle' Dick Tater Valued Senior Member

    Messages:
    53,966
    There is a gene for attraction to men. The female relatives of homosexual men tend to have more children. So homosexuality is what happens when this gene is "misplaced". The evolutionary payoff must be significant if this gene survives, even though it results slightly less reproduction on the part of some individuals. One presumes there is a similar gene that produces attraction to females, and this explains female homosexuality.

    http://www.newscientist.com/article/mg19926702.200-how-bisexuality-is-passed-on-in-the-genes.html
     
  9. Light Travelling It's a girl O lord in a flatbed Ford Registered Senior Member

    Messages:
    1,154
    So following on from that, it would make sense that male siblings of lesbians would be more fertile.
     
  10. spidergoat Liddle' Dick Tater Valued Senior Member

    Messages:
    53,966
    Maybe so, but it's not fertility exactly, more of a mental thing.
     
  11. Dywyddyr Penguinaciously duckalicious. Valued Senior Member

    Messages:
    19,227
    I wonder how that ties in with the study (lost the link, but it has been posted on Sci before now) that showed that with twins, if they are of opposite sexes, if one is gay the likelihood is that both will be.
    I.e. the guy will be attracted to men whereas the woman won't. Does he somehow "steal" all her "allotment"?
     
  12. Bert Registered Member

    Messages:
    88
    hmmm... nice idea there nature

    Please Register or Log in to view the hidden image!

     
  13. atheist Registered Member

    Messages:
    33
    well if its a gene that is responsible for homosexuality then how did it stay in our gene pool up till now.

    my theory is when the mutation happened it should have died with the person cause they didnt reproduce but yet its still around.

    1) so either everyone has the gene but its not turned on,
    2) arranged marriage or going with the normal avoiding social outcast
    3) or just to knock someone up cause our desire to reproduce is strong

    i like no3 cause i looks at it as if a straight man went gay for 1 night to have a baby. now every gay and lesbian can have their kid made in a test tube.
     
  14. spidergoat Liddle' Dick Tater Valued Senior Member

    Messages:
    53,966
    The reason it persists in the gene pool is that when the gene for attraction to men is present in female relatives, it causes greater reproduction. So the benefits to the entire gene pool are significant, even though it might occasionally cause reduced reproduction when expressed in a man. The mutation isn't specific to men. The unit of selection isn't the individual, it is the gene itself.
     
    Last edited: Aug 2, 2010
  15. madanthonywayne Morning in America Registered Senior Member

    Messages:
    12,461
    It could also be that most homosexuals are the result of a unique mutation like Down's Syndrome.

    People with Down's Syndrome rarely reproduce, yet they persist in the population because chromosomal nondisjunction happens every so often during the process of meiosis.

    Homosexuality may also be due to some error (mutation) that occurs every so often.

    Alternatively, it could be a situation like sickle cell anemia in which there is a benefit to having one gene for homosexuality and that benefit outweighs the reproductive disadvantage to those who carry two copies of the gene.
     
  16. Mandana Registered Senior Member

    Messages:
    34
    I re-write the question: How does all homosexuality fit into the theory of evolution?

    Thanks and I found this comment:

    Don't see how something that would increase somebody's sex drive towards men would somehow invalidate one's sex drive towards women.
     
  17. spidergoat Liddle' Dick Tater Valued Senior Member

    Messages:
    53,966
    Maybe it doesn't. The development of one's personal desires also has much to do with experience and conditioning.
     
  18. Light Travelling It's a girl O lord in a flatbed Ford Registered Senior Member

    Messages:
    1,154
    Yes I see, more libido than fertility, but wouldn’t that be more to do with hormones and the endocrine system rather than a mental function?
     
  19. Shadow1 Valued Senior Member

    Messages:
    4,160
    .

    what now? homosxuality is evolution, what i know about that is that it's bullshit,
    homosexuality existed thousadns of years ago,
    there are an arabic tribe in past, before islam, where all men do it with each other, and everywhere, and and and...
    not evoultion!
    infact, i prefer the word "adaptation" more than "evolution"
     
  20. spidergoat Liddle' Dick Tater Valued Senior Member

    Messages:
    53,966
    Why not evolution?
     
  21. Dywyddyr Penguinaciously duckalicious. Valued Senior Member

    Messages:
    19,227
    Explain this please.
    I get the feeling you've misread the question.
     
  22. Shadow1 Valued Senior Member

    Messages:
    4,160
    .

    what i understood from the question, is that, if the homo is a part of evolution, or the new humans if i say, that the next step in evolution is homo, first that brakes the nature rules, because you can't reproduce by homo sex
    like man with man, or woman with woman, natrually, inless you change the sexual organs.
     
  23. Dywyddyr Penguinaciously duckalicious. Valued Senior Member

    Messages:
    19,227
    Then you HAVE misunderstood the question.
    The question asks, "since homosexuality occurs how does the theory of evolution ACCOUNT for it?"

    I.e. homosexuality doesn't (apparently) help the species continue, yet both are still around.
     

Share This Page