Corra, a 2-month-old African elephant, skipped onto the savanna for the first time at Disney’s Animal Kingdom theme park on Thursday morning. Within that first hour, she scampered alongside mom Nadirah, explored a log and interacted with her aunts and grandmother. She played with her food, a stack of hay, freshly fluffed by Walt Disney World cast members. And she mostly ignored the tourists rolling by as part of the park’s Kilimanjaro Safaris attraction, even after one cried out “It’s a baby!” Corra is a big baby, weighing in at 312 pounds, an increase from her 200 pounds when she was born at …