@Haliaeetus There are a few zoos worldwide that have more than one species. Just in the USA, there are both black AND white rhinos at these zoos: Busch Gardens, Disney's Animal Kingdom and San Diego Zoo Safari Park...and Gladys Porter until fairly recently.
Bronx, Buffalo, Denver, Fort Worth, Miami, Tampa and San Diego Zoo Safari Park ALL have both Greater One-horned Rhinos and either Black/White Rhinos.