The nabarlek is a small species of macropod (marsupial) endemic to the northern regions of Australia, recognized for its silver-gray fur with a reddish tinge and a distinct cheek stripe. Its body is 29–35 cm (11.5–14.7 in) long (head–rump) and tail is 22–31 cm (8.7–12.3 in), and its weight ranges from 1.0 to 1.7 kg (2.2–3.5 lb), making it one of the smallest rock kangaroos. It has powerful hind legs adapted for rapid hopping between rock crevices and an elongated snout with jaws equipped with a unique system of molar tooth replacement, which maintains masticatory efficiency throughout life.
Habits
The species is predominantly nocturnal and nocturnal-crepuscular, spending the day hidden in rocky crevices and caves to avoid the heat and predators; it feeds on grasses, ferns and other herbaceous plants found around rocky shelters and may form small familiar groups for security.
Reproduction
Mating can occur throughout the year; gestation lasts about 30 days, after which the female usually gives birth to a single cub that spends the first 4–5 months in the maternal pouch and is fully independent after about 175 days.
Distribution
It has a disjunct distribution in northern Australia, being found in the Kimberley region of Western Australia and the “Top End” (Northern Territory), preferring rocky sandstone and granite habitats with crevices and caves for shelter and surrounding open areas for feeding.
