Hippopotamus Amphibius (Hippo): Narrative
- Information on geography range, natural history, and scientific classification.
- http://animaldiversity.ummz.umich.edu/site/accounts/information/Hippopotamus_amphibius.html

River Hippopotamus
- Describes their habits with links to other sites. Also includes pictures of hippos, with a map of where they live.
- http://www.ultimateungulate.com/Artiodactyla/Hippopotamus_amphibius.html

Pygmy Hippopotamus
- General information on hippopotamuses, including its life style, habitat, and life cycle.
- http://www.ultimateungulate.com/Artiodactyla/Hexaprotodon_liberiensis.html

Hippopotamus
- View pictures of hippos and learn about the habitat, movement, life cycle, and behavior of the hippo.
- http://nature-wildlife.com/hipptxt.htm