However, some researchers have suggested that the invention of weapons such as spears and bows and arrows made intertribal warfare among early humans so lethal that group selection did take over.
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然而,一些研究人员认为随着诸如矛,弓和箭这些武器的发明,使早起人类部落之间的战争甚为惨烈,因而群体选择发挥起了效应。
单词 However, some researchers have suggested that the invention of weapons such as spears and bows and arrows made intertribal warfare among early humans so lethal that group selection did take over. 的词典定义。@海词词典-最好的学习型词典
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