ahh, you beat me to it! Yes, good point about the smaller stomachs. Wikipedia says that "Studies show that there is a correlation between small stature and a l

ahh, you beat me to it! Yes, good point about the smaller stomachs. Wikipedia says that "Studies show that there is a correlation between small stature and a longer life expectancy. Individuals of small stature are also more likely to have lower blood pressure and are less likely to acquire cancer." https://en.wikipedia.org/wiki/Human_height https://en.wikipedia.org/wiki/Human_height So this could be it ;-)