Animal fans have the chance to help name a newborn baby rhino living at Zoo Atlanta. The rhinoceros calf, born on Christmas Eve, will be named through a Sweet 16 bracket, the zoo said. The calf’s mom is named Kiazi and her dad is named Mumbles.Zoo Atlanta’s Rhino Care team will submit nine names for the “Rhino Naming Madness” bracket. The zoo is allowing people to submit suggestions for the other seven bracket options from Thursday through Sunday. Brackets and the first round of four rounds of voting will launch on March 20, with the winning name to be announced on April…