The ground cuscus (Phalanger gymnotis ) is a marsupial from the order Diprotodontia and belongs within the family Phalangeridae, a diverse family consisting of the other cuscus species and the brushtail possums (Trichosurus spp.) and the scaly-tailed possum (Wyulda squamicaudata ).
It is known as madaw, ket-ketm, or kñm in the Kalam language of Papua New Guinea.
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NocturnalNocturnality is an animal behavior characterized by being active during the night and sleeping during the day. The common adjective is "nocturnal",...
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FrugivoreA frugivore is an animal that thrives mostly on raw fruits or succulent fruit-like produce of plants such as roots, shoots, nuts, and seeds. Approx...
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HerbivoreA herbivore is an animal anatomically and physiologically adapted to eating plant material, for example, foliage, for the main component of its die...
In zoology, a folivore is a herbivore that specializes in eating leaves. Mature leaves contain a high proportion of hard-to-digest cellulose, less ...
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ArborealArboreal locomotion is the locomotion of animals in trees. In habitats in which trees are present, animals have evolved to move in them. Some anima...
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ZoochoryZoochory animals are those that can disperse plant seeds in several ways. Seeds can be transported on the outside of vertebrate animals (mostly mam...
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Island endemicIsland endemic animals are found in a single defined geographic location, such as an island. Animals or organisms that are indigenous to a place ar...
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ScansorialScansorial animals are those that are adapted to or specialized for climbing. Many animals climb not only in tress but also in other habitats, such...
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TerrestrialTerrestrial animals are animals that live predominantly or entirely on land (e.g., cats, ants, snails), as compared with aquatic animals, which liv...
Among animals, viviparity is the development of the embryo inside the body of the parent. The term 'viviparity' and its adjective form 'viviparous'...
Altricial animals are those species whose newly hatched or born young are relatively immobile. They lack hair or down, are not able to obtain food ...
A burrow is a hole or tunnel excavated into the ground by an animal to create a space suitable for habitation, temporary refuge, or as a byproduct ...
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SolitaryG
starts withBody weight of the ground cuscus averages 2.5 – 3.0 kg. Head and body length is about 440 mm and tail length s 330 mm although wild populations show variation depending on their location, with individuals from lowland regions being the largest and highland animals the smallest. It has opposable thumbs on the hind feet, a prehensile tail, and a bifurcation between the second and third front digits to allow it to move easily within the trees and to feed in a suspensory position.
The pelage is short and dense and is usually some shade of grey, often with white markings on the belly and scrotum. The tail has a course, tubercle-like appearance at the base and on the dorsal side, with a ridged fingertip patterning on the underside to facilitate gripping. The feet are large with five digits, only the opposable digit on each hind foot is without claws. The ears of the ground cuscus are prominent and naked. The pouch opens forward and contains four mammae.
The ground cuscus is endemic to New Guinea and Aru Islands and inhabits both forests and scrubland. It is most common at elevations between 500 and 1500 m but has been recorded as low as 200 m and as high as 2600 m. Swampy areas, deltas and floodplains are usually avoided. The ground cuscus is classified as "Least Concern" on the IUCN Red List, although it has been extirpated from parts of its original range by excessive hunting.
Cuscuses are generally arboreal folivore/frugivores, and are slow-moving and nocturnal, although hunters in New Guinea have observed them sunning themselves outside their burrows in the early morning. The tendency to nest in burrows makes this species vulnerable to hunting with dogs.
The ground cuscus differs from all other phalangerids in spending its days in burrows in the ground and appears as comfortable at ground level as in the trees. Captive specimens are often described as being mainly arboreal, whereas wild ground cuscuses are generally described as a terrestrial species. Regarded as a solitary species, the ground cuscus fights by adopting a bipedal stance and lashing out with the forelimbs whilst emitting hissing and barking vocalisations. In captivity, compatible pairs can be housed together, but periodic fighting may still occur.
