Dusky Leaf Monkey aka Spectacled Langur (Trachypithecus obscurus), family Cercopithecidae, Malaysia
photograph by Nevin Vin
seen from Russia
seen from Türkiye

seen from United States

seen from Ukraine

seen from United States
seen from Yemen
seen from United States

seen from United Kingdom

seen from Singapore
seen from United States

seen from Russia
seen from Malaysia

seen from Canada
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Dusky Leaf Monkey aka Spectacled Langur (Trachypithecus obscurus), family Cercopithecidae, Malaysia
photograph by Nevin Vin
A dusky leaf monkey (Trachypithecus obscurus) and its infant in Malaysia. Infants of this species are born orange/blonde, which fades as they age
by K.L. Chew
Spectember 2024 #04: Forest Gelada
Someone who identified themself only as Pendrew asked for a "ruminant-like Old World Monkey":
After much of East Africa rifted off into a separate continent, shifting climate turned the alpine grasslands of what was once the Ethiopian Highlands into into warmer subtropical forests – and the highly terrestrial grass-eating geladas that inhabited the region adapted to new sources of food.
Yedenigelada pendrewsii is a large quadrupedal herbivorous monkey, about 1.5m tall at the shoulder (~5'). It has a specialized pseudoruminant digestive system with a three-chambered stomach, similar to that of camelids, and it occupies an ecological niche convergent with the ancient chalicotheres, selectively browsing on trees and shrubs while sitting upright and using its long clawed forelimbs to pull branches within reach.
Unlike its highly social ancestors this species is mostly solitary, although during the breeding season groups of males come together in leks to compete for female attention. Displays consist of inflating large colorful throat pouches to make loud resonating calls, and flipping upper lips to bare teeth and gums.
Bonnet Macaque (Macaca radiata), family Cercopithecidae, order Primates, Kerala, India
Macaques are large, intelligent, omnivorous monkeys spread throughout Asia, with a single species in Northern Africa and Europe
They live in large groups with complex hierarchies
Several species, including the Bonnet macaque, have adapted well to living among people, becoming a nuisance as they raid crops, eat garbage, and occasionally attack people
Bonnet macaques are named for their “hairstyle”
Photo by Pauline Rico
Have you seen the rhesus macaque (Macaca mulatta)?
I have now
Yes, in photos/videos
Yes, irl
I'm not sure
The rhesus macaque has the widest range of any non-human primate.
Red-shanked Douc
become ungovernable
Formosan rock macaque (Macaca cyclopis), photographed by jurga_li
De Brazza's monkey (Cercophithecus neglectus), family Cercopithecidae (Old World monkeys)
ZooParc Overloon, taken September 2025