Contraception vs. euthanasia: The latest quandary of our world's zoos - Examiner.com

Contraception vs. euthanasia: The latest quandary of our world's zoos Examiner.com Prior to the 1970s, Mexican gray wolves were brutally hunted, almost to extinction. Zoos in Mexico and the United States initiated captive breeding programs to reverse the endangered species status of the wolves. On March 29, 1998, captive-bred wolves ... and more »