Rethink,

Thanks for the post. In response to your questions, dolphin is a mammal and so it bonobo. 

And about fruitflies being homosexual, I know it for a fact because I am doing my senior research on the homosexual nature of fruitflies. So, quote me on that. :P

But thanks for your point of view and I get it how it could sound not natural to you. Unless you are really in the shoes of a homosexual you will not be able to see it as natural. Futher with the fear of sounding self contradictory (a bit), I find hard to wrap my head around bisexuals. But then I am doing my research on it. Hopefully, it will start to make sense to me.