Wildlife contraceptives of various kinds are under development. These are intended to control population growth among both tame and wild animals. One which has been used in trials is the Porcine Zona Pellucida, or PZP vaccine.
This article is based on "Wildlife contraceptive" from the free encyclopedia Wikipedia (http://en.wikipedia.org). It is licensed under the terms of the GNU Free Documentation Licencse. In the Wikipedia you can find a list of the authors by visiting the following address: http://en.wikipedia.org/w/index.php?title=Wildlife+contraceptive&action=history