Babirusas  (Babyrousa spp.)

Deciduous: A plant that sheds its leaves at the end of the growing season.
Diurnal: Active during the day.
Subspecies: A population usually restricted to a geographical area that differs from other populations of the same species, but not to the extent of being classified as a separate species.

1. IUCN Red List (January, 2009)
   http://www.iucnredlist.org
   
2. Ultimate Ungulate (October, 2003)
   http://www.ultimateungulate.com/Artiodactyla/Babyrousa_babyrussa.html
   
3. Macdonald, D. (2001) The New Encyclopedia of Mammals. Oxford University Press, Oxford.
   
4. Meijaard, E. and Groves, C.P. (2002) Upgrading three subspecies of babirusa (Babyrousa sp.) to full species level. Asian Wild Pig News, 2 (2): 33 - 39. Available at:
   http://iucn.org/themes/ssc/sgs/pphsg/Newsletter%202%20(2).pdf
   
5. CITES (October, 2003)
   http://www.cites.org/eng/resources/species.html
   
6. Animal Diversity Web (October, 2003)
   http://animaldiversity.ummz.umich.edu/accounts/babyrousa/b._babyrussa
   
7. Oliver, W.L.R. (1993) Pigs, Peccaries, and Hippos Status Survey and Conservation Action Plan. IUCN, Gland, Switzerland.
   
8. Oliver, W.L.R. (2005) Pers. Comm.
   
9. Wildlife Conservation Research Unit (October, 2003)
   http://www.wildcru.org/endangeredspecies/babirusa/babirusa.htm