RealAmerican wrote:
Space Bandit wrote:
Scarcity caused it initially imo from a human perspective. Since, it's been an almost intrinsic addiction.
I just can't get my head around eating the inside of dead animals. It just seems so weird to me. Primitive really.
Scarcity of nutrition?
To the best of my knowledge, we can only speculate as to why we've taken the omnivorous path. Over all, I do think the likeliness of nutritional scarcity is what caused our species to shift physically, and shorten our digestive track to aid in processing meats. Our species developed under the stress of the ice age. Since a good deal of the moisture was frozen, I would imagine there to be large areas with tundra-like climates. What lush areas there were, were likely melt water runoff from glaciers. A majority of of the species would likely be huddled around these jungle oases, with some specialists and generalists being the exception.
Something must have happened to push our species out of the lush forest/jungle setting, and into the arid grasslands/Savanna. My guess would be other apes more physically suited to a forest environment, or predators (ancient leopards, etc). It could have even been a series of natural disasters like volcanoes. The weight from the massive glaciers of the Pleistocene would have forced land up where there was no land, and thus created volcanoes to boot. They could have devastated forest/jungle regions. Typical genetics probably didn't work out in the harsher climates, so natural selection kicked in and might have supported the taller ones with longer legs. It would have allowed our ancestors to spot predators in tall grass. That could have led to other advantages that we currently utilize today thanks to bipedalism.
The open grasslands were probably not nearly as forgiving, especially nutritionally. I'm sure some tried meat out of despiration one day and became sick. Eventually they may have crossed the charred remains of an animal killed by wildfires/volcanoes, and found the meat to be more digestible. Eventually this could have led to man utilizing fire for nutritional purposes. Living in such a harsh and unforgiving environment could have also been the cause of our rapid intellectual and conscious development. You either outsmart your competition/predators, or you become large and armored like herbivores with their thick hides and horns. We took the more intellectual route, and it's paid off up until the advent of the industrial revolution. Of course this is just me speculating, as it's almost impossible to know what caused our dietary shift during our development.
I also saw a magpie eating some vomit on the pavement in the town centre. 
then he started making threads about me 
. Thats typical of those who over the years loose their natural supply of Vit, B 12. thelyran, aka, billy ruben was another one who succumb to the B 12 deficiency.
