Regarding the picture: yuck!<p>Many of these traits seem like Lamarckian drivel. Taller because we get good nutrition? That's current genetics being expressed, not evolutionary pressure.<p>The intestines may be spot on, perhaps obese people reproduce less for numerous factor (though I don't know I've ever seen a study on this, it may be true). The requirement here would be that the reason people are obese is they ingest too much sugar and fat.<p>Quadruple chins? I don't see the reasoning being valid here.<p>The the interested: <a href="http://en.wikipedia.org/wiki/Lamarkism" rel="nofollow">http://en.wikipedia.org/wiki/Lamarkism</a>
Basically: cutting the tails off dogs at birth won't result in no-tailed dogs being born after a few generations.