IMO, the biggest problem facing species extinction is modern medicine. We have come so far with meds, that we are basically killing our selves in the future by saving us in the now. Think about it...as far as I can see, there has always been Heart Disease, Diabetes, Cancers and STDs, among other melodies, only NOW we can keep them around and breeding. Sounds harsh I KNOW. Its the right thing to do...but every action has an equal and opposite reaction! Its no more survival of the fittest, its the survival of the best access to medical care. On a SERIOUS NOTE...OUTLAW Plastic Surgery!!!!!! We as men gravitate to beautiful women...if we dont know how our partners really look...WE are DOOMING our posterity to lack luster genes! lol