Among prehistoric humans, two groups dependent on marine food sources show bone collagen $\\delta ^{15}$ N values that are 4 to 6 per mil more positive than those from two agricultural groups. The nitrogen isotope ratios of bone collagen from prehistoric inhabitants of the Bahamas are ...
A staple part of the vegetarian dino-diet was probably horsetails, fern-like plants that were abundant in prehistoric swamps 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。 By fossils, we mean traces of prehistoric animals such...
百度试题 结果1 题目7. Scientists say the diet of prehistoric humans probably required more chewing (chew) teeth. 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
and nitrogen concentrations in collagen of 359 historic and prehistoric African humans, and modern and prehistoric East African non-human mammals are described... Ambrose,Stanley H. - 《Journal of Archaeological Science》 被引量: 1498发表: 1990年 A review of dental microwear and diet in modern ...
Living in trees their diet consists mainly of leaves, flowers, and fruits. In regards to predation adult iguanas have very few predators consisting largely of jaguars, crocodilians, and humans. In fact, some areas of Central America have nicknamed green iguanas ‘chicken of the forest’ because ...
When compared by themselves to humans Neanderthals seem to have most of the advantages, being physically stronger 951 Words 4 Pages Decent Essays Read More Essay on Neanderthals and Homo sapiens The diets of Homo neanderthalensis and Homo sapiens are very different. The diet of the Homo sapiens ...
►Information about diet can sometimes be gathered from an animal's teeth and bones.For example,in mammals teeth provide clues tooverallfood sources.Carnivores such as dogs and cats,for example,have slicing teeth adapted to meat eating.Humans have a more generalized dentition,built for chewing ...
15. 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....
Determining the diet of such groups is one of the central concerns of prehistoric human ecology. Floral and faunal remains found in sites of human habitation are the principal forms of evidence archaeologists use. For example, pollen and seeds recovered from places where humans lived are compared ...