Gotham City has Ace the Bat-Hound. Metropolis has Krypto. The zombie apocalypse has Rex! Rex is a super-intelligent, undead-battling, Golden Retriever and the star of Big Dog Ink‘s newest comic book series, Rex, Zombie Killer. In the book, Rex and his pack of animal friends travel across a zombie-ridden world looking for a home. The comic is written by Rob Anderson and illustrated by DaFu Yu. Rex, Zombie Killer will hit most stores by May 2, 2012. Check out images and more on the comic’s official Facebook page.