Colossal Biosciences have introduced a new kind of wolf to the world, but had you been alive over 12,500 years ago you might’ve seen a similarly enormous predator stalking across the Americas. They have functionally de-extincted the dire wolf by genetically modifying a gray wolf, giving life to three puppies that share some of the traits of these ancient animals, including giant heads, incredible musculature, and big white shaggy coats. | IFLScience