送交者: xj 于 2005-9-09, 23:53:43:
回答: Nonsense 由 habpi 于 2005-9-09, 18:46:09:
in relation to temperature.
It seems that those northern people eat more fat because their land is not arable due to low temperature. The more fat may cause brain size change to store fat, as brain is the fatest organ in human body.
Just a wide guess.