Diademed sifaka  (Propithecus diadema)

Arboreal: Living in trees.
Diurnal: Active during the day.
Gestation: The state of being pregnant; the period from conception to birth.
Natal: Site of birth.
Primary forests: Primary forest is forest that has remained undisturbed for a long time and has reached a mature condition.
Subspecies: A different race of a species, which is geographically separated from other populations of that species.

1. IUCN Red List (September, 2002)
   http://www.iucnredlist.org
   
2. Garbutt, N. (2007) Mammals of Madagascar: A Complete Guide. A&C Black, London.
   
3. CITES (October, 2002)
   http://www.cites.org
   
4. IUCN/SSC Primate Specialist Group (September, 2009)
   http://www.primate-sg.org/CR/P.d.diadema.htm
   
5. Nowak, R.M. (1991) Walker's Mammals of the World. The Johns Hopkins University Press, Baltimore and London.
   
6. Irwin, M.T. (2008) Feeding ecology of Propithecus diadema in forest fragments and continuous forest. International Journal of Primatology, 29: 95 - 115.
   
7. Irwin, M.T., Raharison, F.J., Rakotoarimanana, H., Razanadrakoto, E., Ranaivoson, E., Rakotofanala, J. and Randrianarimanana, C. (2007) Diademed sifakas (Propithecus diadema) use olfaction to forage for the inflorescence of subterranean parasitic plants (Balanophoraceae: Langsdorffia sp., and cytinaceae: Cytinus sp.). American Journal of Primatology, 69: 471 - 476.
   
8. Mittermeier, R.A., Konstant, W.R., Nicoll, M.E. and Landgrand, O. (1992) Lemurs of Madagascar: An Action Plan for their Conservation 1993-1999. IUCN, Gland.
   
9. Duke Lemur Centre (September, 2009)
   http://lemur.duke.edu