>>12641748oops forgot to proofread
so something on the left would remove sperm more effectively wheras something on the right would be less effective.
my understanding of biology is that any gene that accounts for human behavior is probably distant from what is expressed physically. but then the environment almost seems to force the life form on the right to adapt to compensate for having . .
>>12641764i've read somewhere that in species where multiple males compete for the same female, that the last male to copulate has a higher rate of reproductive success. It makes it seem as if the filters in the female reproductive system are that effective and it's that the concentration of the last male is higher even if the first male has a headstart.
