Science do not have any conclusions about homosexuality.
In my whole life, I have never seen any homosexuals in animal kingdom, in our villages, we have lots of cattle, poultry, never seen anything like homosexuality in animals.
I used to hear homosexuality exists only in jails, because they do not have access to women in jails.
Homosexuality is BY choice NOT by chance.
Common guys we are in hi-tech age, please invent some medicine to cure this abnormality.
Even electric switch or battery needs Positive and a Negative. (Electricity is not GAY friendly)