You were the one that linked that phenotype with the environement and i pointed out to you how flawed that theory is. There are races that live in deserts hotter than ours that are not Slim and tall. Your hypothesis is flawed. It's a maternal gene except it. Even a masaai that mixes with a different population of females will express the phenotype stated above in lower frequencies.
Yes some do have large frames but that gene expression is rare in such populations.
