As hams keep getting fatter, breeding will be reduced because the logistics of having sex will be too much for them. As a side note, my normal sized friend is getting infertility treatments and her fertility specialist told her that a lot of very overweight women come to him for treatment, complaining pcos is the reason they can't get preggers. Instead of helping them he just tells them that part of pcos treatment is losing weight and they have to get to a normal bmi before he will diagnose them as infertile in the first place. Not one has lost the weight. BTW, pcos on average causes a gain of 8-10 lbs., not 300.