![]() For instance, research on stable isotopes in the bones of prehistoric humans, as well as hunting practices unique to humans, show that humans specialized in hunting large and medium-sized animals with high fat content. For example, geneticists have concluded that “areas of the human genome were closed off to enable a fat-rich diet, while in chimpanzees, areas of the genome were opened to enable a sugar-rich diet.”Įvidence from human biology was supplemented by archaeological evidence. Significant evidence for the evolution of humans as predators has also been found in our genome. In the bodies of omnivores, fat is stored in a relatively small number of large fat cells, while in predators, including humans, it’s the other way around: we have a much larger number of smaller fat cells. Miki Ben DorĪnother indication of being predators is the structure of the fat cells in our bodies. The evolution of the HTL during the Pleistocene as we interpret it, based on the totality of the evidence. ![]() Strong acidity provides protection from harmful bacteria found in meat, and prehistoric humans, hunting large animals whose meat sufficed for days or even weeks, often consumed old meat containing large quantities of bacteria, and thus needed to maintain a high level of acidity.” ![]() Producing and maintaining strong acidity require large amounts of energy, and its existence is evidence for consuming animal products. “The acidity in our stomach is high when compared to omnivores and even to other predators. ![]() “One prominent example is the acidity of the human stomach,” says Dr. Ben-Dor and his colleagues collected about 25 lines of evidence from about 400 scientific papers from different scientific disciplines, dealing with the focal question: Were stone-age humans specialized carnivores or were they generalist omnivores? Most evidence was found in research on current biology, namely genetics, metabolism, physiology, and morphology. In a process unprecedented in its extent, Dr. ![]()
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |