Burmese Snub-nosed Monkey

The species spend summer months in temperate mixed forests at upper elevations of their range, and descend to lower ground in the winter to escape snow. In contrast to other snub-nosed monkeys which are mostly ground dwellers, the Myanmar snub-nosed monkeys are highly arboreal in habitat behaviour spending much of their times on trees. Males are outnumbered females by 1 to 2.1. When first discovered, the only known specimens existed in three or four groups within a 270 square kilometres (100 sq mi) range at 1,700 to 3,200 metres (5,600–10,500 ft) above sea level in the eastern Himalayas, in the north-eastern section of Kachin State, the northernmost part of Burma (Myanmar). In 2011, a population was discovered in Pianma, Lushui County, Yunnan, China. The species is isolated from other snub-nosed Rhinopithecus by the Mekong and the Salween rivers; the other 4 species, golden, black, gray and Tonkin snub-nosed monkeys, are found in China and Vietnam. The species shares habitat with Shortridge's langur, stump-tailed macaque, Assam macaque, rhesus macaque, and northern pig-tailed macaque. On the morning of 16 October 2011, a forest guard at Gaoligongshan National Nature Reserve in China took photos of a group of snub-nosed monkeys which were later identified as R. strykeri. …