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Proboscis Monkey
Nasalis larvatus
Silhouette: PhyloPic
- KingdomAnimalia (Animals)
- PhylumChordata (Chordates)
- ClassMammalia (Mammals)
- OrderPrimates
- FamilyCercopithecidae (Old World Monkeys)
- GenusNasalis (Proboscis Monkeys)
- SpeciesNasalis larvatus (Proboscis Monkey)
In 3 days >90%
300 Verified sightings at Bako National Park From 2019 to 2026
1,357 In all 4 parks
April Best month
🌅 Crepuscular When it's spotted
About the Proboscis Monkey
The proboscis monkey or long-nosed monkey (Nasalis larvatus) is an arboreal Old World monkey with an unusually large nose (or proboscis), a reddish-brown skin color and a long tail. It is endemic to the Southeast Asian island of Borneo and is found mostly in mangrove forests and on the coastal areas of the island.
This species co-exists with the Bornean orangutan and monkeys such as the silvery lutung. It belongs in the monotypic genus Nasalis. The proboscis monkey belongs to the subfamily Colobinae of the Old World monkeys. However, the difference between the subspecies is small, and not all authorities recognise N. l. orientalis.
The genus name Nasalis comes from the Latin word nasus meaning "nose". This animal was made known to Westerners by Baron Friedrich von Wurmb in 1781, he later sent specimens of it to Stamford Raffles in Europe. The proboscis monkey is a large species, being one of the largest monkey species native to Asia. Only the Tibetan macaque... Wikipedia →
Recent sightings of Proboscis Monkey in Bako National Park
LIVEiNaturalistGlobal Distribution
Parks Where Found
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Tanjung Puting National Park | 🇮🇩 Indonesia | |
| 2 | Kinabatangan Wildlife Sanctuary | 🇲🇾 Malaysia | |
| 3 | Bako National Park | 🇲🇾 Malaysia | |
| 4 | Sepilok | 🇲🇾 Malaysia |
Zoos & Centres Where Found
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Taman Safari Bali (Bali Safari) | 🇮🇩 Indonesia | |
| 2 | Sepilok Orang Utan Rehabilitation Centre | 🇲🇾 Malaysia | |
| 3 | Bronx Zoo | 🇺🇸 United States | |
| 4 | Chimelong Safari Park | 🇨🇳 China | |
| 5 | Lok Kawi Wildlife Park | 🇲🇾 Malaysia | |
| 6 | Surabaya Zoo | 🇮🇩 Indonesia | |
| 7 | Johor Zoo | 🇲🇾 Malaysia | |
| 8 | Taman Safari Indonesia 2 | 🇮🇩 Indonesia | |
| 9 | The Green Connection | 🇲🇾 Malaysia |
Before you go
What are the chances of seeing a Proboscis Monkey in Bako National Park?
Very likely
About 80% of wildlife watchers report a Proboscis Monkey sighting in Bako National Park on a given day, based on 300 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 4th most-seen of the 6 mammals we can rate there. Over three days the chance rises to over 90%, if each day is a fresh chance.
When is the best time to see a Proboscis Monkey in Bako National Park?
April–May, July–August and December–January
In those months about 80% of wildlife watchers report a Proboscis Monkey in Bako National Park on a given day, against about 50% in June, the lowest month.
What time of day is best to see a Proboscis Monkey?
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Proboscis Monkey sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is most active around dawn and dusk.
Is Bako National Park the best place to see a Proboscis Monkey?
Among the best
Of the 4 parks where we can rate Proboscis Monkey sightings, Bako National Park ranks 3rd at about 80%, level with the leaders once rounded. The best odds are in Tanjung Puting National Park (Indonesia, about 80%) and Kinabatangan Wildlife Sanctuary (Malaysia, about 80%). All parks ranked.
Which relatives of the Proboscis Monkey live in Bako National Park?
Same family: Cercopithecidae
The closest relatives of the Proboscis Monkey that you can see in Bako National Park (family Cercopithecidae, Old World Monkeys) are Silvered Leaf Monkey (about 80%) and Crab-eating Macaque (about 70%), with each one's daily chance of a sighting.
Where does the Proboscis Monkey sighting chance come from?
GBIF citizen-science records
It is estimated from how often the Proboscis Monkey is recorded against all the mammals logged in Bako National Park (300 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
