What? like, um, necessary evolutionary change to contend with changed circumstances?
An alteration in the structure or function of an organism or any of its parts that results from natural selection and by which the organism becomes better fitted to survive and multiply in its environment.The only way that makes sense is....
Well, let me tell you a story.
There was this comedienne, can't remember who was heckled by an audience member, What, are you a lesbian?
She replied, Let me think about it - are you the alternative?
So yeah, I suppose I can see where homosexuality could be an "adaptation"....