The war between man and cuddly cats will continue! CBS has renewed Zoo , (one of) its wacky science-fictiony summer series, for a second season of animal attacks, tainted pet food, global conspiracies, and telepathic dogs. CBS says Zoo was the most-watched scripted summer series of 2015, which means either we all need to rethink our priorities or we need some new scripted summer series. Zoo is an adaptation of the James Patterson novel of the same name, depicting what would happen if animals stopped playing nice and started being REAL. As in, coordinated attacks on human beings from bats, rats, cats, and more! James Wolk stars as a studly animal expert named Jackson Oz, seriously. As far as the rest of the network's summer programming goes, CBS recently canceled Under the Dome (we're still SUPER sad), but has not made a decision on Extant . The politicians-as-aliens drama BrainDead has been ordered for next summer, as has a new edition of Big Brother . Are you ready for more animal-attack mayhem?