"Hunting Contributes to Animal Species Extinction." Hunting, edited by Dawn Laney, Greenhaven Press, 2008. Opposing Viewpoints. Opposing Viewpoints in Context, http://link.galegroup.com/apps/doc/EJ3010504219/OVIC?u=coll72001&xid=fec987d1. Accessed 7 Mar. 2018. This article was used because it had the incline and decline of species numbers. It also gave the point of view of a well known biologist.
Harrison, Simon. Dark Trophies: Hunting and the Enemy Body in Modern War. Berghahn Books, 2014. This book was chosen because it was one of few books that talked about the topic that is discussed in this paper.
Kiffner, Christian. "African lions and the trophy hunting dilemma." Endangered Species Update, vol. 25, no. 1, 2008, p. 3+. Opposing Viewpoints in Context, http://link.galegroup.com/apps/doc/A222313499/OVIC?u=coll72001&xid=69279967. Accessed 7 Mar. 2018. This article talked about the effects of removing dominant male roles from a pride of lions. It gave numbers and facts about how a pride responds and the role it has in young males.
Lewis Smith, Environment R. "Big Game Trophy Hunters 'Help to Save Rare Species'." The Times, Jan 04, 2007, pp. 29, eLibrary,