So NYT says that Hadza don’t consume more energy than the Westerners do, despite their arduous gathering and hunting activities.
http://www.nytimes.com/2012/08/26/opinion/sunday/debunking-the-hunter-gatherer-workout.html?hpw&gwh=5CC08ED27003B1582B4F836D6F822A02
They hypothesize that the Hadza save energy on unspecified activities other than walking and carrying loads. (Presumably digestion also is taking more energy for them?). Should we hypothesize that they spend less energy thinking? Any other good venues for energy efficiency?

BTW the paper starts out from stating that we “evolve as hunters and gatherers”, and IMVHO this statement requires a lot of qualifiers. For too much evolution happened after switch to agriculture to leave it unqualified, what do you think?

i went to a talk by noah on this. he stated that yes, the mountain range has a much larger change in genetic distance than other regions. don’t know if that’s in the suppelementals.

That’s a little confusing if the Himalayas are supposed to be a barrier between North and South.

But regardless, you can see the “hole” in the continuity caused by the Himalayas right there in the graphic I think. Continuous around the edges but not directly across.