Wolverine
- Wikipedia article describes the anatomy, behavior and range of the species. Includes scientific classification information and photos.
- http://en.wikipedia.org/wiki/Wolverine

Wolverine Clipart
- Illustrations that may be used for educational purposes provided by Florida's Educational Clearinghouse. Includes a brief species description.
- http://etc.usf.edu/clipart/2100/2137/wolverine_1.htm

North American Mammals: Gulo gulo
- The Smithsonian Institution offers a species description with photos and information on conservation status and sexual dimorphism.
- http://www.mnh.si.edu/mna/image_info.cfm?species_id=110

ADW: Gulo gulo
- Find information on the species' habits, geographic range, pictures and classification from Animal Diversity Web.
- http://animaldiversity.ummz.umich.edu/site/accounts/information/Gulo_gulo.html