Billionaire Elon Musk reacted to dire wolves, which went extinct over 12,000 years ago, being brought back to life, saying, "Please make a miniature pet [woolly] mammoth." He also responded to an X user's wish for a "pet triceratops", saying, "They can be a pain in the butt though." Colossal Biosciences said that scientists have created three dire wolf puppies.