Fauna
Mammal · GBIF taxon 2439930

White-eared Opossum

Didelphis albiventris

Also known as Saruê, Comadreja Overa, Timbu, Cassaco

White-eared opossums are highly adaptable marsupials easily recognized by their stark white ears, dark facial mask, and coarse, grizzled grey fur. They navigate both forest canopies and suburban backyards with ease, using their prehensile tails as a fifth limb for climbing. Females carry their developing young in a well-developed pouch, eventually transitioning them to ride on their backs as they forage under the cover of night.

NocturnalMarsupialAdaptable
White-eared Opossum reference1 / 7
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Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Key facts
Diet & prey
  • Insects
  • Small Rodents
  • Fallen Fruits
Predators
  • Crab-eating Fox
  • Maned Wolf
  • Large Birds of Prey
ThreatsVehicle collisions, domestic dog attacks, and habitat fragmentation
HabitatsForests, savannas, shrublands, agricultural areas, and urban zones
Life span2 to 4 years
Classification
  1. FamilyDidelphidae
  2. SpeciesDidelphis albiventris
Range & activity
Native
Safe observation
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
May hiss and bite if cornered; observe from a safe distance and do not corner.
Why it is dangerous
Possesses sharp teeth and strong jaws capable of delivering a painful bite if cornered or handled.
How to recognize a risky encounter
Look for the distinct white ears, dark eye mask, and a long, scaly prehensile tail.
What to do
Never attempt to touch or capture a wild opossum; back away slowly to let it escape.
Responsible observation
  • Keep distance: Give them space when encountered at night, as they are non-aggressive but will hiss or play dead if they feel trapped.
  • Secure trash: Keep outdoor garbage bins sealed to prevent attracting them to residential properties.
  • Drive carefully: Watch the roads during twilight and nighttime hours when they are most active.
Related species
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