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Sun Bear

Sun Bear

Helarctos malayanus
  • Habitat

Overview

The sun bear (or Helarctos malayanus) is a small species of bear that lives in the tropical rainforests of Southeast Asia. It has dark brown to black fur with a yellow-tan face and muzzle with a distinctive orange-coloured crescent marking across its upper chest. The sun bear has a broad head, long oblong snout and small rounded ears. Males and females look alike, but males are 10% to 20% larger than females. They measure between 120cm and 150cm in length and weigh between 27kg and 65kg on average.

Sun Bear

Found in Southeast Asia

Appearance

Sun Bear

Male

Sun Bear

Female

Sun Bear

Juvenile

Size & weight

Size

Nose to rump: 1.25 to 1.4 m

Human
Male
Female

Juvenile

Juvenile weight

9.25 kg

Measured as Nose to rump. The person stands 1.75 m tall for scale.

Habitat requirements

Barrier

Barrier grade

Grade 3 of 5

Minimum height

3 m minimum

1 m
Fence

Climbing & water

Climb proof

Needed

Water barrier

Not allowed

Barriers at this grade

Barrier types with resistance grade 3.

Combine this animal with others in the barrier planner.

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Barrier types

Habitat needs

Minimum area

Land

920 m² + 135 m² per extra animal

Water

30 m² + 15 m² per extra animal

Climbing

30 m² + 15 m² per extra animal

Shelter

20 m² per animal

Environment

Temperature

18 to 33°C

Plant coverage

20-100%

Enclosure

Climb-Proof Habitat

Dislikes

Rain and snow

Terrain

  • Sand 0-10%
  • Rock 0-20%
  • Soil 50-100%
  • Grass 0-50%

Conservation

IUCN Red List

Vulnerable

Least concern

Critically endangered

Sun bears are Vulnerable due to habitat loss, poaching, and illegal wildlife trade. Deforestation for palm oil plantations and logging has fragmented their natural rainforest habitat. Additionally, these bears are often captured for the exotic pet trade or killed for their body parts, which are used in traditional medicine. Their elusive and solitary nature makes it difficult for researchers to monitor populations accurately, complicating conservation planning and intervention efforts. Local governments and conservation organisations attempt to protect sun bears in various ways: Sanctuaries provide a safe environment for bears rescued from the illegal wildlife trade or captivity, with rehabilitation towards a potential rewilding possible. Promoting sustainable palm oil production may curb deforestation. Community education programs also play a crucial role by raising awareness about the ecological importance of sun bears and discouraging poaching. Ongoing in-situ and ex-situ research helps understand sun bear behaviour, guiding conservation strategies and policy decisions for long-term survival.

Zoopedia sketchbook

Sun Bear

Social & reproduction

Keeper notes

Sun bears are solitary, with the exception of a mother with her cubs. They only interact to mate. Due to the secretive nature of this species, there are gaps in the knowledge regarding their mating habits. What is known is that sun bears mate year-round, and males track females via their urine. Upon meeting, the pair has a brief courtship and mates before going their separate ways. The female sun bear is pregnant for 3 to 7 months. During the late weeks of her pregnancy, she will locate a den in a hollow tree or somewhere similar where she will give birth to 1 to 3 cubs. Cubs stay with their mother for 3 years. After this point the mother is likely to mate again, while the cubs disperse to live solitarily and independently. Sun bears reach sexual maturity at 3 to 4 years old.

Group and breeding

Research

Research levels

LevelUnlocksResearch gate
No entries.

Every level of this species' research, with its unlock conditions.

Full research tree

Release groups

Valid release groups

GroupTypeAnimals
No entries.

Release groups, reserve requirements and the roles this species fills.

All release group details

Animal facts

  • The sun bear is the smallest bear species.
  • Sun bear cubs are born blind and hairless.
  • Sun bears are also known as ‘honey bears’ because of their love of honey and their habit of breaking open beehives to get it.
  • The sun bear’s tongue is 20cm to 25cm long. It uses its tongue to extract insects and honey.
  • Sun bears can copy each other’s facial expression, a primate-like behaviour.

Taxonomy

Class

Mammalia

Order

Carnivora

Family

Ursidae

Genus

Helarctos

Species

Helarctos malayanus
Sun Bear

Sun Bear

Helarctos malayanus

Class

Mammal

Found in

Asia

Vulnerable

VU

Enclosure

Habitat

Biomes

Tropical, Wetlands

Nose to rump

1.25 to 1.4 m

Barrier grade

Revealed 15 Sep 2026

Base game