Brain/genetic differences an homosexuality

[William Calvin]

ez001932 at othello.ucdavis.edu (John M. Price) writes:
>On this general topic, I find it hard to beleive that people will accept a
>biological basis for gay animals, yet not one for humans.  In horse
>breeders, for instance, if there is the rare event of twins, with one of
>both sexes, the male is killed.  Lore has it that he will never breed. 
>Rodent studies have it that his brain was too feminized, hence it would be
>a gay stud!  Or so I was told in a lecture on this topic.  

>This may be reversed with regards to the sex of the killed, as I am
>working from memory, not any notes.

Don't know the animal data but yes, you've probably got it backwards.  
The testosterone produced by a male fetus may masculinize a female fetus 
during gestation.
    William H. Calvin   WCalvin at U.Washington.edu