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Most humans consume meat; there is a latitudinal range of variation where foragers at higher latitudes eat more meat than those at low latitudes. Animal products (meat and fat) can comprise up to 50% of total calories in regions of high latitudes. Meat-eating, albeit comprising a small proportion of their diet, occurs among baboon and cebus monkeys as well as chimpanzees and bonobos; but not other apes except humans. In contrast, many humans generally consume much greater amounts of meat from a large variety of animals (mammals, fish, mollusks).
The evolution of the human trophic level during the Pleistocene, , American Journal of Physical Anthropology, 2021/03/05, Volume n/a, Issue n/a, (2021)
Exceptionally high δ15N values in collagen single amino acids confirm Neandertals as high-trophic level carnivores, , Proceedings of the National Academy of Sciences, 03/2019, Volume 116, Issue 11, p.4928-4933, (2019)
Tropical forager gastrophagy and its implications for extinct hominin diets, , Journal of Archaeological Sciences: Report, 09/2015, (2015)