But these could be the fossils of colonial unicellular organisms, bacterial mats, or something else entirely.

但这些可能是殖民地单细胞生物、细菌垫或其他完全不同的东西的化石。

Yet even the biggest unicellular organisms have limits, and none grows nearly as large as the elephant, whale, or bear.

然而， 即使是最大的单细胞生物也有局限性，没有一种能像大象、鲸鱼或熊那样长得那么大。

A further argument against the simple wear and tear theory is the observation that the time within which organisms age lies between a few days (even a few hours for unicellular organisms) and several thousand years, as with mammoth trees.

反对简单磨损理论的另一个论点是观察到生物体老化的时间介于几天（对于单细胞生物甚至是几个小时）到几千年之间，就像猛犸象树一样。