Mantled howler monkey  (Alouatta palliata)

Arboreal: Living in trees.
Genus: A category used in taxonomy, which is below ‘family' and above ‘species'. A genus tends to contain species that have characteristics in common. The genus forms the first part of a ‘binomial' Latin species name; the second part is the specific name.
Prehensile: Capable of grasping.
Primary forest: Forest that has remained undisturbed for a long time and has reached a mature condition.
Quadrupedally: Walking on all fours.
Secondary forest: Regenerating forest that has not yet reached the mature state of primary forest.
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.
Translocation: The transfer of individuals from one area for release or planting in another.

1. IUCN Red List (January, 2009)
   http://www.iucnredlist.org
   
2. Richardson, M. (2005) Pers. Comm.
   
3. Broekma, I. (2002) Natural History of the Mantled Howler Monkey (Alouatta palliata) Primates of Panama (March, 2004)
   http://www.primatesofpanama.org/academicresources/articles/howler.htm
   
4. CITES Appendices (March, 2004)
   http://www.cites.org
   
5. Animal Diversity Web – Mantled howler monkey (March, 2004)
   http://animaldiversity.ummz.umich.edu/site/accounts/information/Alouatta_palliata.html
   
6. Primate Behaviour – Mantled howler monkey (March, 2004)
   http://members.tripod.com/uakari/alouatta_palliata.html