The following bibliography has been generated by bringing together all references provided by our content partners. There may be duplication.

References

• 1. Animal Diversity Web (August 2002) http://animaldiversity.ummz.umich.eduaccounts/rattus/r._norvegicus$narrative.html
• 2. Burnie, D. (2001) Animal. Dorling Kindersley, London.
• 3. The Environment Agency (1998) Species and Habitats Handbook. The Environment Agency, Bristol.
• 4. Macdonnald, D. W. & Tattersall, F. T. (2001) Britain's mammals- the challenge for conservation. The Wildlife Conservation research Unit, Oxford University. www.wildcru.org
• Avalos, L., C. Callahan. 2001. "Classification and Characteristics of Mammals" (On-line). Accessed March 28, 2004 at http://www.humboldt.edu/~cmc43/mammalcharacters.htm.
• Banks, R. C., R. W. McDiarmid, A. L. Gardner, and W. C. Starnes. 2003. Checklist of Vertebrates of the United States, the U.S. Territories, and Canada
• Banks, R. C., R. W. McDiarmid, and A. L. Gardner. 1987. Checklist of Vertebrates of the United States, the U.S. Territories, and Canada. Resource Publication, no. 166. 79
• Caleb Finch (1990) Longevity, Senescence, and the Genome. University of Chicago Press: Chicago.
• Corbet, G.B. & J.E. Hill. 1991. A world list of mammalian species. Oxford University, London, England. 243 p..
• Hall, E.R..1981. Mammals of North America. Vols. 1 and 2. John Wiley, New York. 1175 p.
• I., Helmy., & D. Osborn.   (1980).  The Contemporary Land Mammals of Egypt (including Sinai) Field Museum of Natural History, no. 5, Cairo..  
• M., Basuony., F. Gilbert., & S. Zalat.   (2010).  Mammals of Egypt: Atlas, Red Data Listing & Conservation, Ministry of State for Environmental Affairs, Cairo..  
• McPherson A. 1985. A biogeographical analysis of factors influencing the distribution of Costa Rican rodents. Brenesia 23: 97-273.
• Muñoz-Pedreros A & J Yáñez (2000) Mamíferos de Chile. CEA Ediciones, Chile. 463 p.
• Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 16, 2011 at http://animaldiversity.org. http://www.animaldiversity.org
• Nowak, R.M. 1991. Walker's Mammals of the World. Fifth Edition. The John Hopkins University. Baltimore. 1362 p.
• R., Hoath.   (2003).  A Field Guide to the Mammals of Egypt, The American University in Cairo Press, Cairo..  
• Reid, F.. 1997. A FIELD GUIDE TO THE MAMMALS OF CENTRAL AMERICA & SOUTHEAST MEXICO. Oxford University Press, New York. 334 p.
• Rodríguez, J. & F. Chinchilla. 1996. Lista de Mamíferos de Costa Rica. Rev. Biol. Trop. 44(2): 877-890.
• Type:
• Universidad de Costa Rica. s.f.. Catálogo de Mamíferos. Museo de Zoología, Escuela de Biología, Universidad de Costa Rica. s.d..
• Wilson, D.E. & D.M. Reeder (eds.). 1993. Mammals Species of the World: a taxonomic and geographic reference. Second Edition. Smithsonian Institution Press, Washington. 1.206 p.
• Wilson, D.E. 1983. Checklist of Mammals. Pp. 443-448, In: D.H. Janzen (ed.). Costa Rican Natural History. University of Chicago Press. Chicago.
• Wilson, Don E., and DeeAnn M. Reeder, eds. 1993. Mammal Species of the World: A Taxonomic and Geographic Reference, 2nd ed., 3rd printing. xviii + 1207
• Yu et al. (1982) Life span study of SPF Fischer 344 male rats fed ad libitum or restricted diets: longevity, growth, lean body mass and disease. J Gerontol, 37:130-141.