 Posted: Wed 3:53, 04 Sep 2013 Post subject: Early humans wore sturdy shoes News in Science ABC |
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| Early humans wore sturdy shoes News in Science ABC Science
Erik Trinkaus,デュベティカ ダウンジャケット, a professor of anthropology at Washington University,デュベティカ 激安, studied the foot skeletons of western Eurasian Neanderthals and early humans who lived during the Middle Palaeolithic (100,デュベティカ 店舗,000 to 40,000 years ago) and the middle Upper Palaeolithic (35,000 to 10,デュベティカ 激安,000 years ago). He focused on phalanges, the 14 toe bones, and discovered that the shape, length, placement and thickness of these bones began to change 30,ダウンジャケットduvetica,000 to 40,000 years ago. Early Neanderthals and humans had very robust little toes that bent and gripped surfaces. "[But] shoes reduce the mechanical stress of the lesser toes,デュベティカダウンジャケット," says Trinkaus,ダウンジャケットレディース, so the four little toes do not have to do much work. And he observed less substantial little-toe bones in the later skeleton samples. Trinkaus' findings are published in the current Journal of Archaeological Science,ダウンジャケットレディース. "All people living in very cold climates had to wear some kind of thermal protection on their feet, including Neanderthals and their predecessors," says Trinkaus. "[Supportive footwear] was part of a major explosion in human technology and cultural complexity,デュベティカ 青山, especially after 30,デュベティカアウトレット,000 years ago." Clues to sturdy shoes To test out his theory that toe bones could be linked to sturdy shoes, Trinkaus also analysed the feet of early Native Americans, prehistoric Alaskan Inuits and 20th century Euroamericans. The earliest direct evidence for shoes is 9000 year-old Native American sandals but,デュベティカ サイズ, until the time of European contact, the Native Americans are thought to have preferred bare feet. The Inuits,デュベティカ 激安, on the other hand,ダウンジャケットレディース, wore heavy boots made of stiff sealskin soles and soft,http://duveticadownjackets.webmium.com/, fur uppers. As Trinkaus predicted,デュベティカアウトレット, the Native Americans had strong,デュベティカダウンジャケット, flexible little toes,デュベティカアウトレット, while the Inuit and modern Euroamerican toe bones were weaker. Olga Soffer, professor of anthropology at the University of Illinois,デュベティカダウンジャケットメンズ, agrees with the findings, but emphasised that they primarily apply to supportive, hard-soled footwear, and not to shoe wearing in general. "While we have no evidence for sewing before some 30,デュベティカ 店舗 大阪,000 years ago or so, that does not mean that people did not wear clothing, aka body coverings,デュベティカアウトレット, before, just likely not sewn clothes," she says. "The same is likely for footwear." She adds that some ancient peoples even wore shoe and pant combos that, like a hefty version of pajamas with attached footsies, provided an all-in-one ensemble. 相关的主题文章： http://shanshuizhinian.5d6d.com/ http://www.coba404.com/thread-127207-1-1.html http://www.onemate.org/user/login/ http://www.lantangcun.com/forum.php?mod=viewthread&tid=1076069 http://tummai.net/forum/tummai-sport/69989-homeless-men-plan-to-run-in-redeeming-hope-race-knoxville-news-sentinel#71453 http://demo.jz0736.com/forum.php?mod=viewthread&tid=60494 http://www.votereginaldmilton.com/vote-reginald-milton-radio#comment-7504 http://park11.wakwak.com/~yda/cgi-bin/kokoa/keitaibbs2/epad.cgi?mode=view&no=927176&res=1&page=400 http://bbs.3jyw.com/read.php?tid=46351 http://cs5.5d6d.com/ http://wumm.conexxon.com/ http://www.finadri.com.au/node/727897 http://sh17698.co.sonhoo.com/ http://newbests.com/forum/viewthread.php?tid=69533&extra= http://superisland.freebbs.com.tw/viewthread.php?tid=54735&extra= |
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