Hippopotamidae
Table of contents
1 Placement
2 Synonyms and common names
3 References
4 Text
5 Children
Placement
Synonyms and common names
Hippos
References
http://users.tamuk.edu/kfjab02/Biology/Mammalogy/systematics/A7artiodactyla.htm
as of 2002-07-10
Text
Hippopotamuses are the only extant artiodactyls which walk on four toes on each foot.
Children