US firm says it brought back extinct dire wolves

A genetically modified wolf juvenile, one of three successfully bred by reconstructing a genome from the ancient DNA of fossils from dire wolves that had been extinct for over 12,500 years by Colossal Biosciences, billed as "the world’s only de-extinction company", is seen at age five months after his October 1, 2024 birth, at a secure site in the northern United States. Colossal Biosciences/Handout via REUTERS.