The Inuit, people who are commonly referred to as
Eskimos, have the greatest brain size. Maybe this is
just happenstance, maybe this is the result of
countless thousands of years consuming a DHA
rich diet allowing "Bigger Brain" genes to take root
and propagate.
Maybe they don't have special "Big Brain" DNA and
it really is just the diet...
The point is, according to the Molecular Dating crowd
itself, until 80,000 years ago IT HAD TO come down
to diet. If a group wasn't getting the DHA in their food,
it didn't exist to grow their brains...
So this means Aquatic Ape is testable. We can say
"The brains for [A] are smaller than [B], so we know
that [B] was Aquatic Ape."
The big problem here, the incredibly huge problem is
that human evolution is a mosaic, not a straight line.
Two groups could split but so long as they could
interbreed, and there were opportunities, they did.
This is why I put so much stock in "Bottlenecks,"
both genetic as well as environmental.
If most everything BUT the waterside group is wiped
out, this heavily discounts the genetic influence of
inland groups...
If the Chromosome Fusion event prevents interbreeding,
the clock is effectively reset. They can still interbreed
with breakaway inland groups, but only groups to break
off since the Chromosome fusion...
Such bottlenecks are probably the best places to look
for differences in things like brain size. The first groups
to adapt to a new inland environment, after a massive
catastrophe on the order of Yellowstone or Toba, should
have their brains shrink.
Within a couple of centuries to a couple of thousand
years, at least...
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