What is Howler monkey?
{{Taxobox | name = Howler monkey | image = Alouatta guariba.jpg | image_caption = [[Brown howler]] | image_width = 200px | regnum = [[Animal]]ia | classis = [[Mammal]]ia | ordo = [[Primate]]s | familia = [[Atelidae]] | subfamilia = '''Alouattinae''' | genus = '''''Alouatta''''' | type_species = ''[[Red-handed howler|Simia belzebul]]'' | type_species_authority = [[Carolus Linnaeus|Linnaeus]], 1766 | range_map =Alouatta range map.png | range_map_caption = Howler monkey distribution}} '''Howler monkeys''', [[genus]] ''Alouatta'', are one of the largest [[New World monkeys]]. There are 15 [[species]]. They are native to [[South America|South]] and [[Central America]]n [[forests]].<ref>Groves C.P; Wilson D.E. & Reeder D.M. (eds) 2005. ''Mammal species of the world''. 3rd ed, Baltimore: Johns Hopkins University Press, pp. 148–152. {{ISBN|0-801-88221-4}}</ref> These monkeys are famous for their loud [[howl]]s, which can travel three miles (4.8&nbsp;km) through dense forest.<ref>{{Cite web |url=http://nationalzoo.si.edu/animals/smallmammals/exhibits/howlermonkeys/loudestanimal/default.cfm |title=Dunn, Terry at Smithsonian National Zoological Park |access-date=2015-04-09 |archive-date=2009-04-25 |archive-url=https://web.archive.org/web/20090425105823/http://nationalzoo.si.edu/Animals/SmallMammals/Exhibits/HowlerMonkeys/LoudestAnimal/default.cfm |url-status=dead }}</ref> They are the loudest [[monkey]] and may be the loudest land animal. Group males call at dawn and dusk, and at times during the day. The [[Function (biology)|function]] of howling may relate to intergroup spacing and territory protection. These social primates live high in the trees (the [[Canopy (biology)|canopy]]) of the rain forests of [[Central America]], [[Venezuela]], [[Colombia]], [[Ecuador]], [[Guyana]], [[Brazil]], northern [[Argentina]], and [[Bolivia]]. Howlers have a life span of about 20 years. They are in decline due to a loss of [[habitat]]. == References == {{reflist}} [[File:howler monkey.jpg|thumb|left|A pair of [[Alouatta caraya|blac