But there are a few studies about asexuality out there.

但也确实有一些发表了的关于无性恋的研究.

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In the animal kingdom, asexuality definitely exists.

在动物王国中, 无性恋绝对存在.

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This asexuality seems to have arisen only once, yet biology recognises about 380 species of bdelloid.

这种无性繁殖似乎只出现过一次, 但是生物学告诉我们这种蛭形生物有380个物种.

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The hybridization method of asexuality combined with sexuality was used to overcome the infertility after hybridization.

采取无性与有性杂交相结合的方法克服杂交不孕.

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