New enclosures opened in the 1950s, the Lion-Tiger Mountain, Elephant House, Primate House, and Reptile House, which had specimens of over 100 species including crocodiles and pythons. In 1958, the city government approved the expansion of the zoo to 21 hectares on the north bank of the Nanchang River. In 1965, when the construction of the Capital Indoor Stadium took away 4 hectares of the zoo's land to the west, the city granted the zoo 2.3 hectares near the Ming Tombs north of the city. This land became the zoo's off-site breeding center.