Hmmm.. what do you study?? and where did you come across this
information??
Well, at the moment I'm not studying any specific course yet,
because I'm still in secondary school... I'm probably a kid by your
standards 
I got curious about homosexuality, bisexuality, and all the
different kind of alternative sexualities, when I found out about
them through movies, friends, etc. Because of that I started
reading up on this, and other areas of interest I have on the net,
which is where I got all this information from.
I still find it sad that so many people choose to fault people for
the outcome of choices they didn't intentionally make. I don't
think this sorta mindset is going to change anytime soon,
though.
Some reports I've read online, claimed that a possible reason for
normal heterosexuals belittling and discriminating against
homosexuals, is due to the biological "propagate the species"
imperative. Since homosexuals won't be able to produce offspring,
they are rejected by normal heterosexuals, since they become a
liability. Liability, in that they take from the community (food,
shelter, etc), but dont give anything back (offspring
basically).
Actually, our genetically encoded "biological imperatives" can
explain a lot of unique aspects of human behavior.
For example, I read another report that claimed that a possible
reason why a lot of men tend to cheat on their wives, is because
humans by nature polygamous, and not monogamous.
This can be seen if you observes other primates, like gorrillas,
chimpanzees, etc, where it is typical to have an alpha male in
charge of a brood of females. This also coincides with the
"propagate the species" imperative I mentioned earlier, in that one
female human with 5 males can only produce one baby in 9 months
provided they all get pregnant at the same time, whereas one male
human with 5 females, would be able to produce 5 babies in 9
months, also provided they all get pregnant at the same time which
isn't too hard for a (sexually) healthy male.
This would also explain men's chivalry, where they tend to be
protective of women, since a woman's life is viewed as more
precious since she's the one that can bear children.
About the stuff I knew about how male genitalia is actually formed
from female genitalia, I've always been curious about the line down
the underside of my dick and balls so I read up on it, and found
out how they're actually formed. It actually makes me feel that the
way women and men are segregated in society is really stupid, since
we're actually all very similar at a base level. Its also kinda
sad, actually, when you look at how women are subjugated and
discriminated against men in power like in Afghanistan, or how men
are also discriminated by women in feminist societies such as USA
and Singapore, and most other "western" societies.
You know I learn so much more from surfing the net online than I
ever could from school...makes school seem rather boring and dry in
comparison 