I've heard the same thing on the Discover Channel on a program about our past ancestors. This may be true. However, for some groups of men back in our early past, they had no other choice but to hunt for meat due to climate, drought, etc. Is it possible that man's brain developed through use to calculate and figure the best way to hunt the meat (buffalo, deer, etc.)?Afterall, they were hunting something that was trying to not get killed opposed to a plant just sitting dormant. Using statistics, it might not be the actually meat itself that helped us develop our brains, but the use of the brain to acquire meat.
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