Zoos are good for animals, especially endangered animals, because they facilitate and encourage breeding to help get the populations of these animals back up to acceptable levels. Many zoos breed endangered animals and release them back into their native habitats.
Many reputable zoos in America and other countries are part of the Species Survival Plan Program. Under the guidelines of this program, the participating zoos help increase the numbers of animals such as the California condor, red wolf and black-footed ferret, all of which were once on the verge of extinction.
This type of program is always a work in progress, and some animals, such as the Andean condor and lowland gorilla, have not enjoyed as much success as others on this list. With the help of zoos, however, their numbers may rise.