“Zootopia+” heads back to the fast-paced mammal metropolis of Zootopia in a short-form series that dives deeper into the lives of some of the Oscar®-winning feature film’s most intriguing residents, including Fru Fru, the fashion-forward arctic shrew; ZPD dispatcher Clawhauser, the sweet-toothed cheetah; and Flash, the smiling sloth who’s full of surprises.