I think it would be cool if the Bronx Zoo got black rhinos. Black rhinos would be cool since theres none in new york or in new england, and I think the closest place in the northeast to find black rhinos would be Pittsburg, but I am not 100% sure.
The Bronx Zoo does not want to keep elephants, and if they did they couldn't add them to the savannah area since elephants are so expensive, and the bronx zoo always goes all-out on every project, raising everyone's expectations, and doing something new and creative almost every time, and I think they do not have the money to make a elephant exhibit which would achieve any of those incredible standards.