Nearly a century ago, biologists found that if they separated an invertebrate animal embryo into two parts at an early stage of its life, it would survive and develop as two normal embryos.

近一个世纪前，生物学家发现，如果他们在无脊椎动物胚胎生命的早期阶段将其分成两部分，它会存活下来并发育成两个正常的胚胎。

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Although only a research project at this stage, the request has raised the prospect of regulators wading into early-stage tech markets that until now have been beyond their reach.

尽管现阶段这只是一个研究项目，但这一请求提高了监管机构涉足早期科技市场的可能性，而到目前为止，监管机构还无法涉足这些市场。

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RWE said talks with Gazprom were at a very early stage but it admitted it could include an equity stake being released to the Russians and combined gas projects in the UK.

RWE公司说与高兹普罗姆公司的交流还是处于初步接触阶段，但它承认可能会包括在俄罗斯发行普通股，并共同在英国开发燃气电厂项目等内容。

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What's a physical mechanism that could lead to differences between these two cells at this very early stage of development?

什么样的生理机制导致细胞,在发育伊始就产生这些差异

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This surface layer thickens at an early stage in a mouse after 8 days of development.

发育8天后，老鼠早期胚胎的,外胚层开始增厚。

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Our correspondent also said proposals for a super prison were at a very early stage and stressed that this was "a long way" from a new site being built.

BBC: Seven prison closures in England announced

He said talks between Terrapower and China's National Nuclear Corporation were still at a "early stage".

BBC: China and Bill Gates discuss nuclear reactor plan

It is still at a very early stage of operations, and hasn't generated any revenue or profits.

WSJ: No Hitches For Nasdaq On Latest Offerings