Science
- 924
- Leopardus Pardalis (Ocelot): Narrative
- Scientific classification of ocelots, reproduction information, and food habits.
- 927
- Animal Tracks - Opossum (Didelphis virginiana)
- Diagrams and photos of tracks, basic facts, personal notes, and information about opossum babies.
- 929
- Opossum Facts
- Short list of facts about the only native North American marsupial, the Virginia opossum.
- 930
- The 'Possum Pages
- Information about the North American opossum with facts, humor, a quiz and photos.
- 931
- North American River Otter
- Learn about the range, habitat, diet, and life cycle of these amazing otters.
- 932
- Tracking River Otters
- Guide to enjoying river otters based on personal experiences on an island in the St. Lawrence River.
- 934
- Muskox
- From the U.S. Fish and Wildlife Service, a history of the muskox and caribou. Also includes a description of its physical features as well as its behavior.
- 935
- Breeds of Livestock - Swine Breeds
- Comprehensive site with information on more than thirty subspecies of pig from the American Landrace to Wuzhishan.
- 936
- St. Louis Zoo: Babirusa
- Find out about its habitat, geographical range, physical characteristics, family tree and reproduction.