Researchers at Colossal Biosciences have successfully engineered mice to exhibit traits reminiscent of the woolly mammoth, a precursor to their goal of reviving this extinct species. This achievement includes the birth of genetically modified 'woolly pups,' showcasing the practical application of genetic engineering based on comparisons of ancient mammoth DNA with that of modern elephants. While proponents claim that resurrecting extinct species may restore ecosystems, critics highlight the potential risks involved in such de-extinction efforts, raising ethical and environmental concerns.
"For us, it's an incredibly big deal," says Beth Shapiro, chief science officer at Colossal Biosciences, a Dallas company trying to resurrect the woolly mammoth and other extinct species.
"This is really validation that what we have in mind for our longer-term de-extinction project is really going to work," Shapiro told NPR in an interview.
The company says reviving extinct species like the mammoth, the dodo and others could help repair ecosystems. Critics, however, question whether de-extinction would be safe for the animals or environment.
They compared ancient samples of genetic material from mammoths with genetic sequences of African and Asian elephants, the mammoth's closest living relative.
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