Black Wallaroo

Osphranter bernardus · Mammal, Vertebrate, Warm-blooded, Wild

Black Wallaroo

Animal Family

Family Macropodidae, Order Diprotodontia, Class Mammalia

Animal Category

Wild Prey

Breed / Variety

Osphranter bernardus (Black Wallaroo)

Conservation Status

IUCN Red List status is Least Concern, with a relatively stable population trend. Main threats include localized habitat degradation and feral predators.

About This Creature

The Black Wallaroo is a sexually dimorphic marsupial. Males have a distinctive dark charcoal to nearly black coat, while females tend to be smaller and a lighter greyish-brown. They possess a muscular build, powerful hind legs, smaller forelimbs, and a long, non-prehensile tail used for balance.

Physical Characteristics

Robust body structure adapted for rock-climbing; short, thick fur; long muscular hind legs with specialized claws; small forelimbs; large rounded ears; a tapering dark tail; and strong, curved claws for gripping rocky surfaces.

Behavior & Temperament

Generally solitary or found in small, loose groups. Crepuscular and nocturnal, seeking shelter in caves or under rock ledges during the heat of the day. Shy, alert, and agile on steep rocky slopes. Communicates via foot-thumping and vocal hisses.

Habitat & Diet

Origin Region

Endemic to the rugged sandstone regions of Arnhem Land in the Northern Territory of Australia.

Habitat

Inhabits rocky, mountainous terrain, sandstone escarpments, and rugged rocky outcrops. Terrestrial and bipedal hopping locomotion.

Diet & Nutrition

Herbivorous diet consisting of grasses, leaves, shrubs, and roots found in rocky pockets. Obtains much of its moisture from its food but will drink from available water sources.

Lifespan & Health

Lifespan typically ranges from 12 to 20 years in the wild. Faces predation from dingoes and introduced predators. Females give birth to a single joey, which develops in a pouch.

Special Characteristics

Highly specialized for vertical rock climbing and leaping across treacherous rocky escarpments, a rare adaptation among macropods.

Ecological Information

Acts as a primary herbivore in its rocky ecosystem, helping disperse seeds and serving as prey for native carnivores and dingoes.

Identified on 8/22/2026
Black Wallaroo - Osphranter bernardus | Animal Identifier