This methodology is based on the facts that (1) different food items within the human diet have distinct 13C values, and (2) the 13C value of human bone collagen is determined by the 13C value of the diet. Studies of the development of subsistence patterns based on corn agriculture, ...
The paper reviews some of the main problems in studying the diet and nutrition of contemporary individuals and communities. The potential value of prehistoric food residues and skeletal data to studies of ancient dietary and nutritional levels is then discussed, and it is suggested that these topics...
摘要: Investigates the diet of prehistoric hunter-gatherers in Cape Town, South Africa. Measurement of food intake; Foods known to be important to prehistoric humans; Carbon isotope ratios of human bones.DOI: 10.2307/3969442 年份: 1985 收藏 引用 批量引用 报错 分享 ...
A staple part of the vegetarian dino-diet was probably horsetails, fern-like plants that were abundant inprehistoricswamps and highly nutritious. 食草恐龙的主要食物可能是马尾草,这是一种类似于蕨类的植物,在史前的沼泽地带大量存在,营养丰富。
these sites is one of the greatest achievements of this expedition," said Yang Xiaoyan, who heads a team of the expedition, "through further studies, we can reveal the geographical changes, social and economic conditions and even technological communication of the prehistoric humans in the region....
Techniques were established for the extraction and measurement of 17 beta-estradiol (E2) and progestins (P4) from feces of Old World primates. Studies were... S K,Wasser,Risler,... - 《Biology of Reproduction》 被引量: 413发表: 1988年 A prehistoric diet revealed in coprolites Coprolites ...
Dietary sodium chloride and potassium have effects on the pathophysiology of hypertension in humans and animals The possibly harmful effects of a high-NaCl diet are not unexpected because both prehistoric humans and mammals evolved in a low-NaCl environment. ... L Tobian - 《American Journal of ...
From the paleolithic to the raw food diet, many health-conscious Americans now want to eat the way they believe our ancient ancestors did, but some of these dietary prescriptions make little sense for modern humans, reveals a book on the evolution of the use of food and eating habits among...
Through chemical analysis of dog bones done at the U of A, Losey was also able to determine that the Lake Baikal dogs were fed the same diet as humans. "Early on there's evidence to suggest people loved and cared for their dogs in much the same way we do now, but they were also ...