↑Haenel H. Phylogenesis and nutrition. Nahrung. 1989, 33 (9): 867–87. PMID 2697806.
↑Cordain, Loren. Implications of Plio-pleistocene diets for modern humans. (编) Peter S. Ungar. Evolution of the human diet: the known, the unknown and the unknowable. 2007: 264–5. "Since the evolutionary split between hominins and pongids approximately 7 million years ago, the available evidence shows that all species of hominins ate an omnivorous diet composed of minimally processed, wild-plant, and animal foods.