The bioscience startup has attracted billions in investment – and a flurry of criticism, but founder tells the Guardian plans to bring back the woolly mammoth will not be derailed ...

Dire wolves, long confined to tar pits and fantasy epics, are suddenly being talked about as living, breathing animals again. A high-profile de‑extinction company says it has produced pups modeled on ...

In recent months, the Dallas-based biotech firm Colossal Biosciences announced the rebirth of the long-extinct dire wolf and woolly mammoth, species that had been extinct for thousands of years, ...

For months, researchers in a laboratory in Dallas, Texas, worked in secrecy, culturing grey-wolf blood cells and altering the DNA within. The scientists then plucked nuclei from these gene-edited ...