Przewalski's horse  (Equus ferus przewalskii)

Hybridisation: Cross-breeding between two different species or subspecies.
Inbreeding: The breeding of closely related individuals. An inbred population usually has less genetic variability and this is generally disadvantageous for its long-term survival and success.
Subspecies: A different race of a species, which is geographically separated from other populations of that species.

1. IUCN Red List (July, 2009)
   http://www.iucnredlist.org
   
2. Macdonald, D. (2001) The New Encyclopaedia of Mammals. Oxford University Press, Oxford.
   
3. CITES (July, 2009)
   http://www.cites.org
   
4. Animal Diversity Web (April, 2002)
   http://animaldiversity.ummz.umich.edu/accounts/equus/e._caballus_przewalskii$narrative.html
   
5. Bouman, I. (April, 2002) Pers. Comm.
   
6. Foundation for the Preservation and Protection of the Przewalski's Horse (September, 2009)
   http://www.treemail.nl/takh
   
7. The Takhi Story (April, 2002)
   http://www.takhi.org