The de-extinction company Colossal Biosciences wants to bring back the woolly mammoth—starting with a very furry mouse.
It’s tiny, but this lab mouse could have a mammoth impact ... in order to produce mice with golden hair rather than the usual dark fur and a variant associated with changes in body weight.
Its evidence: genetically engineering mice to have mammoth-like fur. To engineer the woolly mouse, the company’s scientists found mouse versions of mammoth genes and then used CRISPR to edit ...