(Before It's News)
An “experimental” study performed under the guise of conservation involved killing 890 Canadian wolves (and other animals) using aerial gunning, trapping, and strychnine poisoning. This research and publication represents the moral failure of the Alberta government, participating universities, the Canadian Journal of Zoology, and the scientists; and it didn't work.
Source:
https://www.psychologytoday.com/blog/animal-emotions/201412/killing-890-wolves-learn-about-them-somethings-wrong