Northern White-cheeked Gibbon, female, Elephant Valley, Yunnan, China. Though the site where this individual was photographed falls within the recent historical range of Northern White-cheeked Gibbon, this individual is only semi-wild. Fully wild Northern White-cheeked Gibbon has likely been extirpated from China. Northern White-cheeked Gibbon persists in northern Laos and northern Vietnam. Coordinates of this site: 22.175958, 100.843202. Elev.: 770 m (2,540 ft.) (Craig Brelsford)Male Northern White-cheeked Gibbon is all black except for white cheek patches that join under the chin. This individual was in the company of the female above. (Craig Brelsford)Both sexes have blackish face. Female (above) has orange pelage with black crown spot. (Craig Brelsford)Like all gibbons, Northern White-cheeked Gibbon is highly arboreal. It moves through the forest swinging by its arms from bough to bough, a method known as suspensory brachiation locomotion (MacKinnon 2013). (Craig Brelsford)Northern White-cheeked Gibbon inhabits forests between 500–3000 m (1,640–9,840 ft.) (MacKinnon 2013). (Craig Brelsford)
BIBLIOGRAPHY
MacKinnon, John R. Order Primates (Lemurs, Monkeys, Apes) in Smith, Andrew T. & Yan Xie, eds. Mammals of China. Princeton University Press, 2013. Pp. 55–7.
Chivers, D.J., et al. Family Hylobatidae (Gibbons) in All the Mammals of the World. Lynx Edicions, Barcelona, Spain, 2023.