The dodo bird isn’t coming back anytime soon. Nor is the woolly mammoth. But a company working on technologies to bring back extinct species has attracted more investors. Other scientists are skeptical such feats are possible — or a good idea.
For example, Colossal is now testing tools to tweak several parts of the genome simultaneously. It’s also working on technologies for what is sometimes called an “artificial womb,” he said.
Her team plans to study DNA differences between the Nicobar pigeon and the dodo to understand “what are the genes that really make a dodo a dodo,” she said. Other scientists wonder if it’s even advisable to try, and question whether “de-extinction” diverts attention and money away from efforts to save species still on Earth.
“And where on Earth would you put a woolly mammoth, other than in a cage?” asked Pimm, who noted that the ecosystems where mammoths lived disappeared long ago.On a practical level, conservation biologists familiar with captive breeding programs say that it can be tricky for zoo-bred animals to ever adapt to the wild.
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