Walking on two feet was an important evolutionary step.

用两只脚行走是进化的重要一步。

Digital fashion is not an alternative but an evolutionary step.

数字时装并不是替代品，而是发展的一步。

Prokaryotes didn't gradually morph into eukaryotes through a bunch of gradual evolutionary steps.

原核生物不是通过一系列渐进的进化步骤逐渐变成真核生物的。

" And sense where food was and where oxygen was, which is also a critical evolutionary step in these early animals."

“感知食物和氧气的位置，这也是这些早期动物进化的关键步骤。”

" We're seeing (the virus) do...little evolutionary steps that are on the long-term moving towards a potential human infection, " said Ralph Vanstreels.

拉尔夫·范斯特尔斯说：“我们发现… … 从长远来看，禽流感病毒正在逐步进化为潜在的人类感染病”。

He believed that these genetic supermen could take control of humanity and would be the next evolutionary step forward for the species.

他相信这些基因超人可以控制人类，并将成为该物种的下一个进化步骤。

This is the first time that plasticity has been shown to be a potential facilitator of such a major evolutionary steps as our ancestors crawling out of the seas and onto land.

这是首次证明可塑性是我们祖先爬出海洋爬上陆地等重大进化步骤的潜在促进因素。

" And sense where food was and where oxygen was, which is also a critical evolutionary step in these early animals." The study is in the Proceedings of the National Academy of Sciences.

“并感知食物和氧气的位置，这也是这些早期动物的关键进化步骤。 ” 这项研究发表在美国国家科学院院刊上。