One theory is that the glaciation was triggered by the evolution of large cells, and possibly also multicellular organisms, that sank to the seabed after dying.

其中一个理论说，大细胞生物、很可能还有多细胞生物死后沉入海底所散发的气体导致了这个冰河期的出现。

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Here, we investigate whether similar principles influence the evolution of signaling networks in multicellular animals.

在此，我们研究围绕着在多细胞生物的进化信号网路中是否存在着相近的理论而展开。

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From single cells to multicellular organisms, is a leap in the history of evolution, but the timing does not need a long period of time.

由单细胞生物到多细胞生物，是进化史上的一个飞跃，但在时间上并不需要漫长的岁月。

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