26岁男患者，家住沈阳，于12月突然发病，表现为发冷、寒战、高热、大汗后而缓解，隔日发作一次，已10天。体检：脾肋下lcm，余未见异常，末梢血化验：wBc5.0×109／L，N0.68，L 0.32，Hbloog/L，血培养(一)，患者同年8月曾去海南旅游半个月。该患者发热最可能的原因是 ...
extinct hominids. Generally speaking, moderns tend to be a slimmer, taller breed: "gracile," in scientific parlance, rather than "robust," like the heavy-boned Neanderthals, their contemporaries for perhaps 15,000 years in ice age Eurasia. The modern and Neanderthal brains were about the same ...
erectus (sensu lato) hand bones also prohibits its confident assignment to that species at this time. For example, H. erectus (s.l.) is known from Member 1 of the Swartkrans Formation37, which was deposited penecontemporaneously with the formation of the PTK site38. However, the co-...
26,27,28. Upper Bed I includes Tuff IB (1.848 ± 0.003 Ma)25. Directly overlying this are waxy, green-brown claystones deposited during a period of high lake level (Figs.1,2h). Overlying these clays, a weakly stratified siltstone has the geochemical signature of...
Semaw, S. et al. 2.5-million-year-old stone tools from Gona, Ethiopia. Nature 385, 333–336 (1995) Article ADS Google Scholar de Heinzelin, J. et al. Environment and behavior of 2.5-million-year-old Bouri hominids. Science 284, 625–629 (1999) Article ADS CAS Google Scholar Swi...
The activities of early African hominids: a review of the archaeological evidence from the time span two and a half to one million years ago G.L. Isaac (Ed.), Human Origins: Louis Leakey and Ther East African Evidence”, Menlo Park, Benjamin (1976) 483-454 Google Scholar Isaac, 1977 ...
Ardi is also providing insights into ancient hominid behavior. Moving from the trees to the ground meant that hominids became easier prey. Those that were better at cooperating could live in larger social groups and were less likely to become a big cat’s next meal. At the same time,A. ...
pattern: the papers suggest that Untermassfeld has yielded stone tools and humanly modified faunal remains, evidence for a 1 million years old hominin presence in European continental mid-latitudes, and additional evidence that hominins were well-established in Europe already around that time period....
technologies at these sites were all from roughly the same time period—between 75,000 and 55,000 years ago. Virtually all of these sites had piles of seashells. Together with the much older evidence from the cave at Pinnacle Point, the shells suggest that seafood may have served as a ...
Ardi is also providing insights into ancient hominid behavior. Moving from the trees to the ground meant that hominids became easier prey. Those that were better at cooperating could live in larger social groups and were less likely to become a big cat’s next meal. At the same time,A. ...