Tholan
Blackwing Lair Raider
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this doesnt really make any sense as the diet variety of a hunter gatherer was even more limited than that of a farmer, not to mention more sporadic. a bigger factor in determining height would be the consistency in availability of nutrients, not variety -- and the farming lifestyle delivered that consistency much better than hunting/gathering.
there were also other mammals that grew very large in prehistoric times, which had nothing to do with "lifestyle": wooly mammoths, sabertooth tigers, etc.
animals before mass extinctions (insects, dinosaurs, etc.) were even bigger due to higher oxygen content in the atmosphere
and of course, evolution dictates that larger animals inevitably grow larger as they establish themselves as apex animals.
Found the video again, it's in french but has english subtitle if you are interested. What you say is very correct, but one effect you left out is how farming require constant work, and children were working also, carrying heavy weight that could affect their developpment.
Also, the vision of hunter-gatherer we had during the last century was mostly wrong, as they were not always in survival mode. They were always moving around, where they could hunt, drink. The food was plentifull (of course not during the ice ages).
Cro magnon (-40'000 years) had an average height of 1.83m, then during the neolithic it was 1.62m.
I'm not saying they are right, but they do raise good points and I find it very interesting.
EDIT : here is one of the source of the video :
The Worst Mistake in the History of the Human Race
The advent of agriculture was a watershed moment for the human race. It may also have been our greatest blunder.
www.discovermagazine.com
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