Dr.A writes:
jaderis writes:
And I also must say that you cannot have a discussion about the
evolution of sexes/"genders" (which you most definitely alluded to in your OP with your talk of "guys" without a mate) without a discussion of the
evolution of sexual reproduction
I think you can.
Sexual reproduction is where two organisms combine forces to produce further organisms sharing a mixture of their genotypes.
Sexes is where you have a system of two mating strains, with mating only between the two strains, not within strains, such that one mating strain (males) contributes a smaller gamete.
It is reasonable to discuss how to get from one to the other, and I think this is Lyston's question --- at least, he seemed reasonably satisfied with my answer.
It is, indeed reasonable to ask how to get from one to the other, but my response dealt with discussing the sexes without discussing sexual or, at least, non-asexual, forms of reproduction. Reproduction can occur without sexes, but sexes (as we know them and as I believe Lyston was referring to) cannot occur without non-asexual reproduction and the evolution of sexual reproduction (in all of its forms) is crucial to understanding the evolution of the sexes (as we know them).
Reproduction can occur without distinguished sexes (which you said), but distinguished sexes are a product of the evolution of reproduction from asexual to sexual and cannot be discussed without the discussion of it (in the context of this thread).
The new title change narrows it down, but does not make the discussion of the evolution of reproduction from asexual to sexual off-topic, as it is essential.
"You are metaphysicians. You can prove anything by metaphysics; and having done so, every metaphysician can prove every other metaphysician wrong--to his own satisfaction. You are anarchists in the realm of thought. And you are mad cosmos-makers. Each of you dwells in a cosmos of his own making, created out of his own fancies and desires. You do not know the real world in which you live, and your thinking has no place in the real world except in so far as it is phenomena of mental aberration." -
The Iron Heel by Jack London
"Hazards exist that are not marked" - some bar in Chelsea