February 6, 2023

Crowds gather to look at a tusk and a tooth from a woolly mammoth Aug. 14, 2006, at the Illinois State Museum in Springfield, Ill. Colossal Biosciences has raised an additional $150 million from investors to develop genetic technologies that the company claims will help to bring back some extinct species, including the woolly mammoth. (File Photo/AP/Seth Perlman)