This suggests the early human population was tiny (so the opportunities for new matrilines to evolve in the first place were limited) and reinforces the idea that Homo sapiens may have come close to extinction (eliminating some matrilines that did previously exist). Indeed, there may, at one point, have been as few as 2,000 people left to carry humanity forward.
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Monday, April 28, 2008
Before the exodus FROM The Economist
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Science
Native Speaker of American English
Conversation practice. Chatting or in-depth discussion of news articles.
TOEFL-IELTS practice / CV, SOP, journal paper, essay revision
英語家教
彈性排課, 免通勤, 托福, 職場英文, 履歷/論文修改…等。
請看我的學生推薦信。
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