Sunda Slow Loris
Sunda Slow LorisSunda Slow LorisSunda Slow LorisSunda Slow Loris

Sunda Slow Loris

Nycticebus coucang

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
40–50% · Likely
overall probability at Way Kambas National Park
9 Verified records at Way Kambas National Park
April Best month highest sighting rate
☀️ Diurnal When it's active during daytime hours (6am–6pm)

The Sunda slow loris (Nycticebus coucang), or greater slow loris, is a strepsirrhine primate and a species of slow loris native to Indonesia, West Malaysia, southern Thailand and Singapore. It measures 27 to 38 cm (11 to 15 in) from head to tail and weighs between 599 and 685 g (21.1 and 24.2 oz). Like other slow lorises, it has a wet nose (rhinarium), a round head, small ears hidden in thick fur, a flat face, large eyes and a vestigial tail. The Sunda slow loris is nocturnal and arboreal, typically occurring in evergreen forests. It prefers rainforests with continuous dense canopies and has an extremely low metabolic rate compared to other mammals of its size. Its diet consists of sap, floral nectar, fruit and arthropods, and will feed on exudates such as gum and sap by licking wounds in trees. Wikipedia →

40–50% of wildlife watchers report a Sunda Slow Loris sighting in Way Kambas National Park, based on 9 days of visitor records from GBIF citizen-science data.

Closest Relatives at Way Kambas National Park

Crab-eating Macaque
EN Endemic

Crab-eating Macaque

🌅 Crepuscular Mammal

Macaca fascicularis

50–60% · Likely
Siamang
EN

Siamang

🌅 Crepuscular Mammal

Symphalangus syndactylus

40–50% · Likely
Silvered Leaf Monkey
VU

Silvered Leaf Monkey

🌅 Crepuscular Mammal

Trachypithecus cristatus

Insufficient data
Horsfield's Tarsier
VU

Horsfield's Tarsier

☀️ Diurnal Mammal

Cephalopachus bancanus

Insufficient data
Southern Pig-tailed Macaque
EN

Southern Pig-tailed Macaque

🌅 Crepuscular Mammal

Macaca nemestrina

Insufficient data
Southern Mitered Langur
VU

Southern Mitered Langur

🌅 Crepuscular Mammal

Presbytis mitrata

Insufficient data

📅 Monthly Probability

20–30
Jan
10–20
Feb
20–30
Mar
60–70
Apr
50–60
May
20–30
Jun
50–60
Jul
20–30
Aug
50–60
Sep
20–30
Oct
40–50
Nov
20–30
Dec

☀️ When They're Spotted

Most active during daytime hours (6am–6pm) · across all parks (global)

☀️Diurnal
☀️🌙🌙12am6am12pm6pm12am

Global Distribution

Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.

where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is)  ·  parks where it occurs — tap a pin for the sighting probability there

Parks Where Found

# Park Country Probability
1 Way Kambas National Park 🇮🇩 Indonesia
40–50%
2 Kerinci Seblat National Park 🇮🇩 Indonesia
Insufficient data
3 Khao Sok National Park 🇹🇭 Thailand
Insufficient data
4 Kaeng Krachan National Park 🇹🇭 Thailand
Insufficient data

Quick answers

What are the chances of seeing a Sunda Slow Loris in Way Kambas National Park?

About 44% of wildlife watchers report a Sunda Slow Loris sighting in Way Kambas National Park, based on 9 days of visitor records from GBIF citizen-science data.

When is the best time to see Sunda Slow Loris in Way Kambas National Park?

April has the highest sighting rate for Sunda Slow Loris in Way Kambas National Park in our monthly data.

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