* Fact : We humans do not have any innate carnivorous instincts ... Put one hundred human infants ( or babies , or toddlers , or even young children ) in one hundred rooms containing one hundred rabbits ( or puppies , or kittens , or calves , or chickens , or baby pigs , or lambs , etc ) and every single one of them will either try to play with those animals or sit and stare at them in wonderment . In fact , not a single human infant ( or baby or toddler or young child ) will ever try to kill & eat any animal whatsoever – unless he or she has some sort of brain injury or psychological defect ... Think about that for a moment .
* Fact : Humanity ’ s oldest ancestors were actually vegans ... Yes , " paleo diets " are still the rage ( literally ) in many circles , and yet if these people are trying to use the diets of their ancestors to justify their cravings for meat , then why are they only looking at their relatively recent human ancestors to do so ? In fact , our oldest human ancestors actually ate an almost exclusively plant-based diet ... That ' s right , while the relatively young diets of Homo-erectus and the Neanderthals are still up for debate ( with quite a few paleontologists believing that these ancestors ’ diets were primarily plant-based as well ), there is little doubt that our more original ancestors were almost exclusively plant-eaters . Indeed , in a 2013 study released by the Proceedings of the National Academy of Sciences , it was reported that up until roughly 4 million years ago , all our earliest ancestors ( for roughly 26 million years !) had diets that were very similar to chimpanzees – diets that , other than including the very rare lizard or occasional termite , were completely plant-based .
* Fact : We humans do not have the biological tools required to catch , or kill , or render live game ... Dr . Richard Leakey , world-renowned anthropologist , summarized the issue as follows : “ You can ’ t tear flesh by hand and you can ’ t tear hide by hand . Our anterior teeth are also not suited for tearing flesh or hide . We don ’ t have large canine teeth , and we wouldn ’ t have been able to deal with food sources that require those large canines .” In addition , Dr . Neal D . Barnard , founder and president of the Physicians Committee for Responsible Medicine , says humans lack the raw abilities to be good hunters , noting that , " We are not quick , like cats , hawks or other predators . It was not until the advent of arrowheads , hatchets and other implements that killing and capturing prey even became possible ."
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