New answers tagged reproduction
1
this is a bit unclearly expressed but I think it solves the problem.
I think the reason is simply that if you have all the hermaphrodites being dificult about their mates they will evolve fast because the best mates will mate more and the worst won't mate a lot. But if the hermaphrodit individual is hard to get, it also won't be motivated to pursue sex and ...
2
It should also be added that allopatric speciation is arguably the most common form of speciation (compared to sympatric speciation). This means that, often, the only thing needed for speciation is lack of gene flow, time and genetic drift. Add to that the different selection pressures at different locations. However, the different mechanisms of allopatric, ...
4
My understanding of evolution is that genetic mutation occurs in individual members of a species, and they become a new species.
Isn't a definition of species a group of genetically similar organisms that are pretty much exclusive in breeding ability?
Well, no.
You are correct in that the origin for any new species lies in mutations which occur in ...
7
You seem to be tacitly assuming that sexual pleasure plays no evolutionary role. This could not be further from the truth.
Sexual pleasure, or the anticipation thereof, prepares the vagina for penetration. Sex without vaginal lubrication is painful and unpleasant for the female. That alone should be answer enough.
In addition, sexual pleasure in and of ...
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