Loren Cordain's recent post was quite interesting.
However, there was one statement that puzzled me:

"Therefore, calories derived from hunted animal foods
remains relatively constant in all hunter gatherer societies regardless
of latitude."

It was my understanding from previous postings that the
studies show a reasonably large range in this variable.
Is that not the case?

With regard to the relationship with latitude, I wonder if
the relationship with respect to role of fishing is somewhat
skewed because the sample may be heavily represented by
very high latitude HG groups that rely greatly on fishing.

I would suspect (and perhaps Loren can answer this) that the
sample from the Ethnographic Atlas largely contains HG groups
in the tropics and the very high latitudes, since historic
HG groups have been largely eliminated from the temperate zone.

Steve Meyers