Sun Bear

Sun Bear

Helarctos malayanus

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
Daily sighting probability ~10% · With luck
at Gunung Leuser National Park
9 Verified sightings at Gunung Leuser National Park From 2019 to 2026
215 Verified sightings across all 8 parks From 2019 to 2026
May Best month highest sighting rate
🌅 Crepuscular When it's spotted at dawn and dusk

About the Sun Bear

The sun bear (Helarctos malayanus) is a bear species in the family Ursidae found in the tropical forests of Southeast Asia. It is the only species in the genus Helarctos and the smallest bear species, standing nearly 70 cm (28 in) at the shoulder and weighing 25–65 kg (55–143 lb). It is stockily built, with large paws, strongly curved claws, small, rounded ears and a short snout. The fur is generally short and jet black, but can vary from grey to red. The sun bear gets its name from its characteristic orange to cream-coloured chest patch.

The sun bear's unique morphology with inward-turned front feet, flattened chest, powerful forelimbs with large claws suggests adaptations for climbing, and it is an excellent climber and the most arboreal of all bears. It sunbathes or sleeps in trees 2 to 7 m (6 ft 7 in to 23 ft 0 in) above the ground. It is mainly active during the day, though nocturnality might be more common in areas frequented by humans. It tends to remain solitary, but sometimes occur in pairs such as a mother and her cub. It does not hibernate, possibly because food resources are available the whole year throughout its range. It is an omnivore, and its diet includes ants, bees, beetles, honey, termites, and plant material such as seeds and several kinds of fruits; vertebrates such as birds and deer are also eaten occasionally. It breeds throughout the year; individuals become sexually mature at two to four years of age. Litters comprise one or two cubs that remain with their mother for around three years.

The range of the sun bear is bounded by Northeast India to the north then south to southeast through Bangladesh, mainland Southeast Asia, Brunei and Indonesia. These bears are threatened by heavy deforestation and poaching for food and the wildlife trade. They are also harmed in conflicts with humans when they enter farmlands, plantations, and orchards. The global population is estimated to have declined by 35% since the 1990s. It is listed as vulnerable on the IUCN Red List. Wikipedia →

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 Daily sighting probability
1 Kaeng Krachan National Park 🇹🇭 Thailand
~50%
2 Gunung Leuser National Park 🇮🇩 Indonesia
~10%
3 Way Kambas National Park 🇮🇩 Indonesia
Insufficient data
4 Taman Negara National Park 🇲🇾 Malaysia
Insufficient data
5 Kerinci Seblat National Park 🇮🇩 Indonesia
Insufficient data
6 Khao Sok National Park 🇹🇭 Thailand
Insufficient data
7 Kinabatangan Wildlife Sanctuary 🇲🇾 Malaysia
Insufficient data
8 Khao Yai National Park 🇹🇭 Thailand
Insufficient data

Quick answers

What are the chances of seeing a Sun Bear in Gunung Leuser National Park?

About 10% of wildlife watchers report a Sun Bear sighting in Gunung Leuser National Park, based on 9 verified sightings from GBIF citizen-science data.

When is the best time to see Sun Bear in Gunung Leuser National Park?

May has the highest sighting rate for Sun Bear in Gunung Leuser National Park in our monthly data.

← Back to Gunung Leuser National Park