1万年前�罗拉多大峡谷中的松鼠被一条河流分隔成两个种群两个种群现在已经�生明显的分化研究人�指出经过长期演化可能形成两个物种如下图所 Template




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tomski1万年前�罗拉多大峡谷中的松鼠被一条河流分隔成两个种群两个种群现在已经�生明显的分化研究人�指出经过长期演化可能形成两个物种如下图所 coloring