Common rock rat | |
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Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Rodentia |
Family: | Muridae |
Genus: | Zyzomys |
Species: | Z. argurus |
Binomial name | |
Zyzomys argurus (Thomas, 1889) | |
The common rock rat (Zyzomys argurus) is a species of rodent in the family Muridae. It is found only in Australia, where it lives in the rocky areas of woodlands, grasslands and low open forests, particularly on the talus, or scree, of cliff slopes. [2] As a nocturnal animal, it spends the daytime nesting in cool rock crevices. Direct exposure to the sun can quickly result in heat stroke and death. [3]
The rock rat is an overall golden brown with white belly. It can weigh anywhere 25–65 grams (0.88–2.29 oz), with a head to body length of 85–140 millimetres (3.3–5.5 in). The thick tail is 90–125 millimetres (3.5–4.9 in) long and contains fat deposits. [3] The tail is covered in overlapping scales and sparse hairs. The skin of the tail can easily be pulled off, allowing the animal to escape predators in some situations (this function is similar to that of lizard tail autotomy). [4]
They are sexually mature at 5 to 6 months of age. The females have 4 nipples but litters average 2 to 3 offspring. Gestation is about 35 days. By the 10th day, the offspring are covered in fur, and by the 12th day their eyes are open. They are weaned by 4 weeks of age. [5] [6] The life span of the Common Rock Rat in the wild is unknown, but an age of 4.2 years in captivity has been reported. [3] [7]
Their diet consists of plant matter, grasses, seeds, fungi and insects. [3] One was observed in Maguk, Kakadu National Park, tucking into a plate of custard and rice pudding that someone had left unattended (Goodfellow, Fauna of Kakadu and the Top End, 1993).[ citation needed ]
The red kangaroo is the largest of all kangaroos, the largest terrestrial mammal native to Australia, and the largest extant marsupial. It is found across mainland Australia, except for the more fertile areas, such as southern Western Australia, the eastern and southeastern coasts, and the rainforests along the northern coast.
The squirrel glider is a nocturnal gliding possum. The squirrel glider is one of the wrist-winged gliders of the genus Petaurus.
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The pale field rat is a small rat endemic to Australia. It is a nocturnal and herbivorous rodent that resides throughout the day in shallow burrows made in loose sand. Once widespread, the range has become greatly reduced and it is restricted to the grasslands, sedges, and cane-fields at the north and east of the continent. The fur is an attractive yellow-brown colour, with grey or cream at the underside. This medium-sized rat has a tail shorter than its body.
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Melomys is a genus of rodents in the family Muridae. Members of this genus live in the wet habitats of northern Australia, New Guinea, Torres Strait Islands and islands of the Indonesian archipelago.
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The Carpentarian rock rat is a species of rodent in the family Muridae. It is found only in Australia.
The Kimberley rock rat is a species of rodent in the family Muridae. It is found only in Australia, specifically in the northern tropical part of the Northern Territory and adjacent Kimberley region of Western Australia, in high-altitude closed forest.
The Nigerian mole-rat is a species of rodent in the family Bathyergidae. It is found in northern Nigeria and Cameroon. A colonial, subterranean species, its natural habitats are tropical dry lowland grassland, riverside woodland and rocky places.
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