Almost all new animals coming to zoos are acquired from other zoos through captive breeding programmes. Animals from the wild are acquired only as rescued ones, or for planned breeding programmes. Some birds like budgerigars, munias and pigeons may be brought from animal dealers.

Wild animals are today coming into conflict with humans as a result of disturbances and loss of habitat. Animals which are victims of such conflict are rescued, and brought to zoo.

Some animals, for example, tamed elephants and macaques, create havoc when they get beyond the control of their master. People and property and harmed by these animals. Zoos are called to help. The animals which are caught are brought to zoos for treatment and keeping.

Zoos exchange their surplus animals with other zoos. Permission and clearances from the concerned authority have to be taken for this.