Allie, a 27-year-old bottlenose dolphin, swims with her female calf born on Dec. 16. (Courtesy of Brookfield Zoo)Allie, a 27-year-old bottlenose dolphin, swims with her female calf born on Dec. 16. (Courtesy of Brookfield Zoo)Allison, a 9-year-old bottlenose dolphin, swims with her male calf born on Dec. 12. (Courtesy of Brookfield Zoo)Allison, a 9-year-old bottlenose dolphin, swims with her male calf born on Dec. 12. (Courtesy of Brookfield Zoo)Allison, a 9-year-old bottlenose dolphin, swims with her male calf born on Dec. 12. (Courtesy of Brookfield Zoo)BROOKFIELD, Ill. (WLS) -- The Brookfield Zoo is now home to two new bottlenose dolphins, officials said.