The influence such as different water temperature, salinity gradient might be the cause of speciation.
不同地域的鲚属祖先群体受到不同水团温度、盐度梯度等影响可能是导致物种分化的原因。
参考来源 - 长臀鮠属与鲚属的物种有效性分析及系统学研究·2,447,543篇论文数据，部分数据来源于NoteExpress
不同的选择压力使得GI的进化速度相对较快， 从而加速了黄山松和马尾松的物种分化。
Thus we speculate that GI (control of flowering time) may have experienced speciation- related selection, which further accelerated its lineage-sorting divergence between the species.
因为他假设语言的进化是不平稳的，这种“颠簸”发生在语言的分叉点上——如同在生物进化上的物种分化。
That was because his hypothesis was that if linguistic evolution is jerky, the jerks will happen at the points where languages split-the equivalent of species splits in biological evolution.
新物种是如何诞生的？ 是由原物种分化而来（生物学家把这称为分枝进化/cladogenesis）。
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