>Or perhaps they understand the positive effects of fats -- dense energy,
vital to every cell in the body; critical to nerves and nerve signalling;
necessary for proper assimiliation to all kinds of vitamins, minerals and
phytochemicals, etc., etc. Plus it tastes good! Weston A Price found that
native peoples all over the world had some good source of animal fat in
their diets.

Yes.  Good point.  As Hayden (1981:395) states, a preference for lipids "
may represent a very practical need among hunter-gatherers for a crucial
scarce resource, rather than just an innate preference for rich food".  Fat
is also a positive component of taste. (sorry still having trouble with my
end note programme for referencing)

Sean McBride
University of Queensland
Brisbane, Australia