国产精品99一区二区三_免费中文日韩_国产在线精品一区二区_日本成人手机在线

 
Ancestors make bread before invention of agriculture: study
                 Source: Xinhua | 2018-07-17 03:39:25 | Editor: huaxia

Dr. Amaia Arranz-Otaegui and Ali Shakaiteer sampling cereals in Jordan's Shubayqa area. (Credit: Joe Roe)

WASHINGTON, July 16 (Xinhua) -- Danish and British scientists found that the oldest direct evidence of bread found to date, at least 4,000 years before the advent of agriculture.

A study published on Monday in the journal Proceedings of the National Academy of Sciences journal Proceedings of the National Academy of Sciences reported the charred remains of a flatbread baked by hunter-gatherers 14,400 years ago at an archaeological site in northeastern Jordan.

The findings suggest that bread production based on wild cereals may have encouraged hunter-gatherers to cultivate cereals, thus contributing to the agricultural revolution in the Neolithic period.

A team of researchers from the University of Copenhagen, University College London and University of Cambridge analyzed charred food remains from a Natufian hunter-gatherer site known as Shubayqa 1 located in the Black Desert in northeastern Jordan.

"The 24 remains analyzed in this study show that wild ancestors of domesticated cereals such as barley, einkorn, and oat had been ground, sieved and kneaded prior to cooking. The remains are very similar to unleavened flatbreads identified at several Neolithic and Roman sites in Europe and Turkey," said Amaia Arranz Otaegui, an archaeobotanist from University of Copenhagen and the first author of the study.

"So we now know that bread-like products were produced long before the development of farming," said Otaegui.

According to the researchers, Natufian hunter-gatherers lived through a transitional period when people became more sedentary and their diet began to change.

"Flint sickle blades as well as ground stone tools found at Natufian sites in the Levant have long led archaeologists to suspect that people had begun to exploit plants in a different and perhaps more effective way," said Tobias Richter from University of Copenhagen who led the excavations.

"But the flat bread found at Shubayqa 1 is the earliest evidence of bread making recovered so far, and it shows that baking was invented before we had plant cultivation."

They suggested that the early and extremely time-consuming production of bread based on wild cereals may have been one of the key driving forces behind the later agricultural revolution where wild cereals were cultivated to provide more convenient sources of food.

Back to Top Close
Xinhuanet

Ancestors make bread before invention of agriculture: study

Source: Xinhua 2018-07-17 03:39:25

Dr. Amaia Arranz-Otaegui and Ali Shakaiteer sampling cereals in Jordan's Shubayqa area. (Credit: Joe Roe)

WASHINGTON, July 16 (Xinhua) -- Danish and British scientists found that the oldest direct evidence of bread found to date, at least 4,000 years before the advent of agriculture.

A study published on Monday in the journal Proceedings of the National Academy of Sciences journal Proceedings of the National Academy of Sciences reported the charred remains of a flatbread baked by hunter-gatherers 14,400 years ago at an archaeological site in northeastern Jordan.

The findings suggest that bread production based on wild cereals may have encouraged hunter-gatherers to cultivate cereals, thus contributing to the agricultural revolution in the Neolithic period.

A team of researchers from the University of Copenhagen, University College London and University of Cambridge analyzed charred food remains from a Natufian hunter-gatherer site known as Shubayqa 1 located in the Black Desert in northeastern Jordan.

"The 24 remains analyzed in this study show that wild ancestors of domesticated cereals such as barley, einkorn, and oat had been ground, sieved and kneaded prior to cooking. The remains are very similar to unleavened flatbreads identified at several Neolithic and Roman sites in Europe and Turkey," said Amaia Arranz Otaegui, an archaeobotanist from University of Copenhagen and the first author of the study.

"So we now know that bread-like products were produced long before the development of farming," said Otaegui.

According to the researchers, Natufian hunter-gatherers lived through a transitional period when people became more sedentary and their diet began to change.

"Flint sickle blades as well as ground stone tools found at Natufian sites in the Levant have long led archaeologists to suspect that people had begun to exploit plants in a different and perhaps more effective way," said Tobias Richter from University of Copenhagen who led the excavations.

"But the flat bread found at Shubayqa 1 is the earliest evidence of bread making recovered so far, and it shows that baking was invented before we had plant cultivation."

They suggested that the early and extremely time-consuming production of bread based on wild cereals may have been one of the key driving forces behind the later agricultural revolution where wild cereals were cultivated to provide more convenient sources of food.

010020070750000000000000011100001373292941
国产精品99一区二区三_免费中文日韩_国产在线精品一区二区_日本成人手机在线
久久视频在线看| 久久久久久久高潮| 亚洲少妇诱惑| 国内精品视频在线播放| 欧美偷拍一区二区| 欧美成人精品激情在线观看| 午夜在线播放视频欧美| 亚洲高清不卡在线观看| 国产自产在线视频一区| 国产精品久久久久久久第一福利 | 一片黄亚洲嫩模| 亚洲国产欧美一区| 黄网站色欧美视频| 国产综合欧美在线看| 亚洲精品国久久99热| 在线播放一区| 黄色成人免费观看| 日韩午夜在线| 99成人免费视频| 亚洲毛片av| 欧美主播一区二区三区美女 久久精品人| 亚洲视频福利| 这里只有精品在线播放| 久久精品国产欧美亚洲人人爽 | 免费h精品视频在线播放| 欧美在线精品一区| 欧美顶级艳妇交换群宴| 欧美sm极限捆绑bd| 欧美日韩精品二区第二页| 欧美精品亚洲二区| 欧美日韩在线三区| 国产精品久久久久久久久久妞妞| 欧美性猛片xxxx免费看久爱| 国产精品wwwwww| 国产精品一区视频| 国产欧美日韩视频在线观看 | 国产欧美精品一区二区三区介绍| 国产精品一卡| 国产欧美日韩一区二区三区| 亚洲黄色三级| 99av国产精品欲麻豆| 99精品视频网| 久久久99免费视频| 欧美成人免费va影院高清| 国产精品一区免费视频| 韩日精品在线| 亚洲欧美日韩精品久久奇米色影视| 午夜在线一区二区| 久久野战av| 欧美国产视频日韩| 国产一区视频网站| 亚洲第一区在线观看| 亚洲精品在线观看免费| 亚洲午夜精品一区二区| 亚洲欧美电影院| 欧美在线播放视频| 六十路精品视频| 欧美日韩理论| 国产精品看片资源| 今天的高清视频免费播放成人| 亚洲激情av在线| 久久午夜av| 欧美日韩在线不卡| 国产酒店精品激情| 最新成人av网站| 亚洲一区二区三区乱码aⅴ蜜桃女| 久久国产精彩视频| 欧美巨乳在线| 亚洲黄色在线视频| 亚洲欧美一区二区三区久久| 免费成人在线视频网站| 欧美体内谢she精2性欧美| 国产日韩欧美中文| 亚洲精品偷拍| 性色av一区二区怡红| 久久九九免费视频| 国产亚洲成av人片在线观看桃| 91久久精品国产91久久| 欧美一区二区日韩| 欧美+日本+国产+在线a∨观看| 国产精品黄页免费高清在线观看| 日韩亚洲欧美成人一区| 欧美区在线观看| 国产一区在线观看视频| 夜夜嗨一区二区| 欧美日韩一卡| 亚洲一区二区三区四区五区午夜| 快she精品国产999| 伊人影院久久| 性xx色xx综合久久久xx| 国产精品区一区| 亚洲美女毛片| 欧美精品少妇一区二区三区| 亚洲最新视频在线| 久久视频在线看| 国产精品久久夜| 午夜日韩激情| 国产自产女人91一区在线观看| 久久免费精品视频| 国产一区二区三区在线免费观看| 久久久久久久久久久成人| 在线观看视频欧美| 欧美日本亚洲视频| 亚洲免费一级电影| 国产精品成人av性教育| 亚洲欧美日韩区| 狠狠色综合网站久久久久久久| 香蕉久久夜色精品国产使用方法| 国产日产高清欧美一区二区三区| 亚洲自拍都市欧美小说| 国产一区二区三区在线观看免费| 免费久久精品视频| 99xxxx成人网| 国产欧美日韩在线| 噜噜爱69成人精品| 亚洲成人自拍视频| 久久一区二区三区av| 亚洲精品偷拍| 国产精品揄拍500视频| 久久野战av| 亚洲视频一二| 国产精品户外野外| 久久久噜噜噜久久| 99精品欧美一区二区三区 | 最新成人在线| 国产精品日韩精品欧美在线 | 欧美一区二区三区成人| 国产精品高潮久久| 亚洲一区欧美二区| 国内精品美女av在线播放| 久久国产综合精品| 韩国av一区二区三区在线观看| 欧美xart系列高清| 亚洲欧美日韩国产一区二区三区 | 亚洲激情国产| 欧美亚日韩国产aⅴ精品中极品| 中国日韩欧美久久久久久久久| 欧美日韩极品在线观看一区| 一本色道久久综合| 国产一区二区三区视频在线观看| 欧美激情一区二区三区高清视频 | 久久综合狠狠综合久久综合88| 一区二区欧美视频| 精品成人a区在线观看| 久久综合中文字幕| 亚洲专区在线视频| 国产精品美女久久久久av超清| 久久综合福利| 性做久久久久久免费观看欧美 | 亚洲黄色小视频| 国产三级欧美三级| 欧美偷拍另类| 欧美韩国在线| 久久蜜臀精品av| 午夜伦理片一区| 这里是久久伊人| 亚洲日产国产精品| 国产精品日韩精品| 欧美日韩国产不卡在线看| 久久久水蜜桃| 欧美有码在线视频| 亚洲一区二区精品| 精品福利电影| 欧美精品一区三区在线观看| 久久久精品久久久久| 亚洲欧洲一区二区在线播放| 欧美日韩中文在线| 蜜桃av综合| 久久久久亚洲综合| 欧美一区二区在线播放| 亚洲一二三四区| 99国产精品久久久| 国产亚洲精品福利| 国产精品久久久久久模特 | 久久久一二三| 欧美在线观看视频一区二区| 亚洲一区高清| 国产精品99久久久久久久久久久久| 亚洲黄色精品| 一区二区三区在线观看国产| 国产亚洲综合性久久久影院| 欧美激情一区在线观看| 午夜精品久久久久久久99水蜜桃| 亚洲麻豆视频| 国产亚洲人成a一在线v站| 国产精品久久久久久久浪潮网站 | 久久成人久久爱| 欧美一区不卡| 欧美一区国产在线| 午夜一区二区三区不卡视频| 亚洲欧美精品一区| 亚洲综合成人在线| 亚洲女优在线| 午夜久久久久久久久久一区二区| 亚洲欧美在线网| 午夜视频久久久| 久久av资源网站| 久久久久亚洲综合| 老司机一区二区三区| 每日更新成人在线视频| 欧美成人乱码一区二区三区| 欧美精品一区二区三区久久久竹菊 | 亚洲欧洲偷拍精品| 亚洲精品一区二区三区四区高清|