- Mammalian Dissection Guide
A guide only, no photographs or diagrams, yet there is much descriptive material on structure and function. http://www.d91.k12.id.us/www/skyline/teachers/robertsd/mammal.htm (Added: Wed Jul 11 2001)
- Order Rodentia. Animal Diversity Web, U of MI
A description of rodents, with links to other sites which further describe morphological characteristics. http://animaldiversity.ummz.umich.edu/chordata/mammalia/rodentia.html (Added: Wed Jul 11 2001)
- Rat Circulatory System
Diagrams and text. http://www.uwinnipeg.ca/~simmons/lb8pg7.htm (Added: Thu Aug 15 2002)
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