After 15 months of waiting, Pittsburgh Zoo officials said the facility’s female black rhinoceros, Azizi, gave birth to a female baby, marking the zoo’s first black rhino birth in 47 years. With only 4,800 animals left in the wild, every captive black rhino birth is a landmark occasion. Zoo veterinarians monitored the birth and say the calf appears to be healthy. Pittsburgh Post-Gazette (9/12) Paul A. Selvaggio The Pittsburgh Zoo and PPG Aquarium has a new  baby rhinoceros.  By Taryn Luna /.. Read more »