Proboscis monkey (Nasalis larvatus).
Image: Charles J. Sharp, CC BY-SA 4.0, via Wikimedia Commons.
At a glance
- IUCN category
- EN · Endangered
- Animal group
- Mammals
- Population trend
- Decreasing
- FaunaHub record reviewed
- Checked against IUCN
- Matches source — IUCN's 2021 global assessment of Nasalis larvatus says EndangeredChecked 2026-10-09 against IUCN's Red List export published 2026-07-28 · assessment
Conservation overview
The proboscis monkey is a large, pot-bellied monkey endemic to Borneo, famous for the male's pendulous nose. It is assessed as Endangered.
It lives in coastal mangrove, swamp, and riverside forest and is an accomplished swimmer.
Range & habitat
Endemic to Borneo, mainly in coastal mangrove, swamp, and riverine forest.
Major threats
Threats below are drawn from the authoritative sources listed on this page. For the current, complete assessment, see the IUCN Red List.
- Loss of mangrove and lowland forest
- Conversion of habitat to oil-palm plantations
- Hunting
Why it matters
As a specialist of Borneo's coastal forests, the proboscis monkey reflects the health of mangrove and riverine habitats that also help protect coastlines.
Gallery
A proboscis monkey and infant — endemic to Borneo.
Image: Charles J. Sharp, CC BY-SA 4.0, via Wikimedia Commons.
Sources
Sources for Proboscis Monkey
- IUCN Red List — look up Proboscis Monkey (authoritative status)
- Animal Diversity Web