Basel Zoological Garden

German �Zoologischer Garten Basel, �also called �Zolli, � privately owned zoological garden in Basel, Switz., noted for its outstanding work in the breeding of the Indian rhinoceros and the pygmy hippopotamus. The zoo was founded in 1874 for the purpose of exhibiting local wildlife. (It opened with about 100 mammals and perhaps 400 birds, mostly European.) Financial difficulties, however, forced zoo administrators to obtain exotic animals