For the first time, scientists said Thursday that they had bred mice with two genetic fathers, steering around biological hurdles that would otherwise prevent same-sex parents from having offspring.

The researchers also bred mouse pups with two genetic mothers. Those pups matured into adults and had pups of their own, outpacing previous efforts to create so-called bimaternal mice.

“This research shows us what’s possible,” Wei Li, a senior author of the study, said in a statement. Li conducted the work with colleagues at the Chinese Academy of Sciences.

via With stem cells and CRISPR, scientists breed mice with same-sex parents

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With stem cells and CRISPR, scientists breed mice with same-sex parents

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