NATIVE RANGE
Where it is found
Brooke's Squirrel is native to Southeast Asia, specifically on the island of Borneo.
Its range includes:
The species is considered endemic to Borneo.
Malaysia (Sabah and Sarawak)
Brunei
Indonesia (Kalimantan)
TREE SQUIRRELS · SPECIES PROFILE
Brooke's Squirrel
Sundasciurus brookei
Least Concern
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Body length18–22 cm (7–9 in)
Tail length16–20 cm (6–8 in)
Weight~200–300 g
Fur colorBrown to dark brown
Breeding seasonUnknown
GestationUnknown
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Classification
KingdomAnimalia
PhylumChordata
ClassMammalia
OrderRodentia
FamilySciuridae
GenusSundasciurus
SpeciesSundasciurus brookei
HABITAT
Where it lives
Brooke's Squirrel inhabits tropical rainforest environments.
Typical habitats include:
It spends most of its life moving through trees and dense vegetation.
Lowland tropical rainforest
Primary forest
Secondary forest
Dense forest canopy
RANGE & HABITAT CONTEXT
Compare form, setting and structure
Related tree squirrels help break up the reference while showing how habitat, body form and movement can vary across the broader group.
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Nest & Shelter
Brooke's Squirrels build nests known as dreys in trees.
Typical nest characteristics include:
Tree cavities may also occasionally be used for shelter.
Constructed from twigs, leaves, bark, and plant fibers
Located in tree forks or dense foliage
Positioned high in the forest canopy
Used for resting, shelter, and raising young
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Physical Profile
Body length18–22 cm (7–9 in)
Tail length16–20 cm (6–8 in)
Weight~200–300 g
Fur colorBrown to dark brown
BellyPale gray or cream
TailModerately bushy
Like many species in the Sundasciurus genus, it has a slender body and strong climbing ability.
BEHAVIOR & FORAGING CONTEXT
Keep behavior connected to the animal
These are related tree squirrels, not photographs of Brooke's Squirrel. Use them as visual context for locomotion, posture, feeding and environmental use.
BEHAVIOR
How it behaves
Brooke's Squirrel is diurnal and arboreal.
Typical behaviors include:
Because it lives in dense rainforest habitats, much of its behavior has not been extensively studied.
Moving quickly along branches and tree trunks
Foraging in forest canopy and understory
Solitary or small group activity
Occasional vocal calls for communication
DIET
What it eats
Brooke's Squirrel is primarily herbivorous, though it may occasionally consume insects.
Common foods include:
Like many forest squirrels, it likely helps with seed dispersal.
Fruits
Seeds
Nuts
Tree buds
Bark
Insects (occasionally)
GROUP DIVERSITY
See the wider group around this species
Squirrels in the same broad group can look and live very differently. These credited references provide comparison without changing the facts for Brooke's Squirrel.
REPRODUCTION
Breeding & Young
Breeding seasonUnknown
GestationUnknown
Litter size2–3 young
Detailed reproductive information is limited.
Nests are typically built in trees using leaves and twigs.
LIFESPAN
Longevity
Unknown
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Conservation
STATUS Least Concern
IUCN Status: Least Concern
Although deforestation on Borneo affects many forest species, Brooke's Squirrel remains relatively widespread across suitable habitats.