Two males—named Romulus and Remus, for the mythical brothers suckled by a she-wolf before founding ancient Rome—were born six months ago and are now living on an undisclosed wildlife refuge. One more female, Khaleesi—named for a Game of Thrones wolf—was born January 30, along with a second female who was born in January but died 10 days later.

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,