At 12:30 1999-05-05 -0700, B. Lischer wrote:
>It
>has been theorized that dogs made us such successful hunters that we were
>able to preferentially consume the most nutrient rich and fatty parts
>(greatest source of energy), thus allowing our energy-expensive (20% of
>total expenditure, I think) brains to grow to their present size.

There is no evidence that dogs/domesticated wolves have been around
longer than Homo Sapiens, so they are later than the "full size brained"
man.  Homo Neandertalis had bigger brains and no dogs.

- Hans