Evolving diets redesign our bodies in other ways. The average U.S. male increased his weight from 166 pounds in 1962 to 191 pounds by 2002. By 2011 we had gained, on average, a further five pounds. If we had observed this kind of generalized transformation in the bodies of a wild species, we would be shocked. But Darwin and his theories could have predicted much of this change; indeed, he saw hints of it in his studies of animal husbandry and how a species rapidly changed and adapted under human-directed breeding. So he would not have been terribly surprised observing the changed morphology of a gaggle of modern humans as they perambulate by with their monster soft drinks in hand."

Evolving diets redesign our bodies in other ways. The average U.S. male increased his weight from 166 pounds in 1962 to 191 pounds by 2002. By 2011 we had gained, on average, a further five pounds. If we had observed this kind of generalized transformation in the bodies of a wild species, we would be shocked. But Darwin and his theories could have predicted much of this change; indeed, he saw hints of it in his studies of animal husbandry and how a species rapidly changed and adapted under human-directed breeding. So he would not have been terribly surprised observing the changed morphology of a gaggle of modern humans as they perambulate by with their monster soft drinks in hand."