中国研究人员说，他们用新型的基因编辑技术，用两个母亲培育健康小鼠，这一重大的进展可能有助于研究人员更好地理解哺乳动物的生殖，但同时也带来了重大的伦理和安全问题。

The scientists conducting the study, published in the journal Cell Stem Cell Thursday, said they were interested in answering why some reptiles, fish and amphibians can reproduce with one parent of the same sex, but others cannot.

Scientists in China breed healthy mice from two females

https://edition.cnn.com/2018/10/11/health/mice-unisex-reproduction-china-intl/index.html