== Additional Sources == 

 Walker, Brett L. The Lost Wolves of Japan. Seattle: University of Washington Press, 2005. 

 Wozencraft, W. C. “Wolves.” Mammal Species of the World (3rd edition ed.). ” Wilson, D. E. and Reeder, D. M. (eds). 3rd edition. Johns Hopkins University Press. 16 November 2005. 

 Bright, Michael. Beasts of the Field: The Revealing Natural History of Animals in the Bible. London: Robson, 2006. 

 Lopez, Barry Holstun. Of Wolves and Men. New York: Scribner Classics, 2004.