Eastern Short-eared Rock Wallaby (Petrogale wilkinsi) lives in rocky outcrops across Northern Australia. It feeds on grasses and leaves. Its conservation status is Least Concern.
Fascinating facts about the Eastern Short-eared Rock Wallaby
- A specimen collected in southeast Arnhem Land in 1925 was later assigned to this rock-wallaby, linking the animal to early European exploration. The specific epithet honors G. H. Wilkins, who gathered the sample that later defined the species. This historic tie shows how a single museum specimen can spark a taxonomic breakthrough decades later, turning a collector's curiosity into a recognized species.
- Weighing just 2.6 to 3.5 kg (5.7 to 7.7 lb), this eastern short-eared rock-wallaby is lighter than its western cousin, a size difference that helped scientists spot its hidden identity. The modest mass, combined with darker fur and brighter limb coloration, signaled a deep split in mitochondrial DNA, confirming it as a distinct lineage rather than a subpopulation. Size, coat, and genetics together reveal how subtle traits can mask a whole separate species.
- The eastern short-eared rock-wallaby was officially named in 2014 after a 1925 specimen collected by explorer G. H. Wilkins, highlighting how a single historic sample can unlock a hidden species. Recognizing it separates conservation plans from its western cousin, ensuring each gets tailored protection.
- The rock-wallaby has bright limb fur and sharp grey-brown head stripes that distinguish it from the western short-eared rock-wallaby.
- The wallaby lives across the Top End of the Northern Territory, including Kakadu and Litchfield National Parks.
Sources
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At a glance
RangeNorthern Australia
HabitatRocky outcrops
DietGrasses and leaves
About the Eastern Short-eared Rock Wallaby
In the rugged, sun-baked outcrops of eastern Australia, the Eastern Short-eared Rock Wallaby navigates its rocky realm with an air of quiet confidence, its sturdy legs and sharp claws allowing it to scale sheer faces and bound across boulder-strewn slopes with effortless ease. As it moves, its soft, grey-brown fur blends seamlessly into the surrounding landscape, rendering it all but invisible to the casual observer, yet its large, dark eyes shine with a keen intelligence, ever-vigilant for the presence of predators. With its remarkable adaptability and sure-footed agility, this unassuming wallaby has thrived in one of the harshest and most beautiful environments on earth.
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