How all-female species avoid the shrinkage of their gene pool is among the animal kingdom's great mysteries.
一些物种只有雌性存在，可为什么它们的基因库不会缩小呢？这是动物界的一个很大的谜题。
What's more, the newfound Leiolepis ngovantrii is no run-of-the-mill reptile—the all-female species reproduces via cloning, without the need for male lizards.
更令人惊讶的是，这种学名Leiolepisngovantrii的爬行类动物十分与众不同。其性别全部为雌性，而繁殖手段竟然是克隆！
There are no significant differences among the three species, and their female flowers are all provided with a perianth of one to three small scales.
三者之间无显著差异，并且它们的雌花都具有由一至三枚小鳞片组成的花被。
There are no significant differences among the three species, and their female flowers are all provided with a perianth of one to three small scales.
三者之间无显著差异，并且它们的雌花都具有由一至三枚小鳞片组成的花被。
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