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05-05-2010, 02:35 AM | #11 (permalink) | |
Juicious Maximus III
Join Date: Nov 2008
Location: Scabb Island
Posts: 6,525
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Quote:
Have you heard the argument that humans are highly undeveloped when born compared to an adult and that to become an adult, the brain has to go through much growth which requires a lot of B12 and other vitamins as well as proteins and fat? This is stuff you easily get from a meat diet, but not so easily from fruits and roots. The argument is that without meat and fat in our diets, we would be so contrained by our food that evolution to the current size of our brain wouldn't even be a likely possibility. It illustrates the importance of meat for eating in our evolution. There's another point as well which relates more to behaviour which is that while our stomachs got smaller, our brains got bigger as we shifted from mainly plant diets to including more meat. When we were herbivores, we had to spend more time eating and more energy digesting as plants are tough to digest. Meat is more easily digestible, gives quick energy, gives you more time to do things other than think about the next meal and so on. A herbivore diet constraints animals in that they need to spend more time eating and digesting. Getting rid of this constraint allowed us to evolve other behaviours. I can't say that all of this is true always and everywhere, but it seems logical to me and I'd like to see what others think about it.
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