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.

互联网

Few creatures — even bacteria — do without sex entirely, but bdelloid rotifers are among that minority.

很少有生物是完全的无性繁殖,连细菌也不是, 但蛭形轮虫却属于这个少数群体.

互联网