It is hard to guess what a Plains rat weights. But we have the answer:
An adult Plains rat (Pseudomys australis) on average weights 53 grams (0.12 lbs).
The Plains rat is from the family Muridae (genus: Pseudomys). It is usually born with about 4 grams (0.01 lbs). They can live for up to 5.58 years. When reaching adult age, they grow up to 12.1 cm (0′ 5″). Usually, Plains rats have 3 babies per litter.
As a reference: An average human weights in at 62 kg (137 lbs) and reaches an average size of 1.65m (5′ 5″). Humans spend 280 days (40 weeks) in the womb of their mother and reach around 75 years of age.
The plains rat (Pseudomys australis), also known as the plains mouse, is a conilurine rodent native to arid and semi-arid Australia. Referred to as the pallyoora or yarlie by Indigenous groups, the plains rat was once widely distributed across central Australia, including north-west New South Wales and south-west Queensland; however, habitat degradation due to grazing, introduced predators and drought have contributed to its decline. Consequently, the plains rat has been listed as ‘presumed extinct’ in New South Wales and Victoria, ‘endangered’ in the Northern Territory and Queensland and ‘vulnerable’ in Western Australia and South Australia. While recent research has indicated the presence of the plains rat in areas such as the Fowlers Gap and Strzelecki Desert regions of New South Wales and within the Diamantina National Park in Queensland, there are only five sub-populations currently recognised nationally, none of which coincide with recent discoveries of the plains rat. As the current population trend of the plains rat has been listed as ‘declining’ by the International Union for the Conservation of Nature (IUCN), the IUCN conservation status for the species is ‘vulnerable’.
Animals of the same family as a Plains rat
We found other animals of the Muridae family:
- Pygmy rock mouse with a weight of 20 grams
- Temminck’s mouse with a weight of 8 grams
- Black-tailed gerbil with a weight of 123 grams
- Sakhalin vole with 7 babies per litter
- Big-eared swamp rat with a weight of 95 grams
- Rajah spiny rat with a weight of 150 grams
- Black-tailed gerbil with a weight of 123 grams
- Mindanao shrew-rat with a size of 10.4 cm (0′ 5″)
- Temchuk’s bolo mouse with a weight of 47 grams
- Oecomys phaeotis with a weight of 73 grams
Animals with the same weight as a Plains rat
As a comparison, here are some other animals that weight as much as the Pseudomys australis:
- Mexican volcano mouse bringing 44 grams to the scale
- Dwarf fat-tailed jerboa bringing 52 grams to the scale
- Lesser tufted-tailed rat bringing 57 grams to the scale
- Broad-striped dasyure bringing 53 grams to the scale
- Red-tailed phascogale bringing 43 grams to the scale
- Yellow-footed antechinus bringing 44 grams to the scale
- Minor epauletted fruit bat bringing 44 grams to the scale
- Osgood’s leaf-eared mouse bringing 45 grams to the scale
- Typical striped grass mouse bringing 43 grams to the scale
- Shortridge’s multimammate mouse bringing 46 grams to the scale
Animals with the same size as a Plains rat
Not that size really matters, but it makes things comparable. So here are a couple of animals that are as big as Plains rat:
- Fresno kangaroo rat with a size of 9.7 cm (0′ 4″)
- Gray-cheeked flying squirrel with a size of 14.2 cm (0′ 6″)
- Malaita tube-nosed fruit bat with a size of 11.9 cm (0′ 5″)
- Northern gracile opossum with a size of 9.9 cm (0′ 4″)
- Dwarf fat-tailed mouse opossum with a size of 11.3 cm (0′ 5″)
- Painted spiny pocket mouse with a size of 11.4 cm (0′ 5″)
- Horsfield’s tarsier with a size of 10.6 cm (0′ 5″)
- Low’s squirrel with a size of 13.7 cm (0′ 6″)
- Highland brush mouse with a size of 12.7 cm (0′ 5″)
- Red-bellied mosaic-tailed rat with a size of 14.3 cm (0′ 6″)
Animals with the same litter size as a Plains rat
Here is a list of animals that have the same number of babies per litter (3) as a Plains rat:
- Dolorous grass mouse
- Taiwan field mouse
- Dwarf fat-tailed jerboa
- Lesser mole-rat
- Deroo’s mouse
- Coast mole
- Bailey’s pocket mouse
- Forest dormouse
- Water deer
- Taiwanese brown-toothed shrew
Animals with the same life expectancy as a Plains rat
Completely different animals, but becoming as old as a Plains rat:
- House mouse with an average maximal age of 6 years
- Yellow-pine chipmunk with an average maximal age of 5.17 years
- Hispid cotton rat with an average maximal age of 5.17 years
- African striped weasel with an average maximal age of 5.17 years
- Stripe-faced dunnart with an average maximal age of 4.83 years
- Sumichrast’s vesper rat with an average maximal age of 5.17 years
- Least chipmunk with an average maximal age of 6.25 years
- Dark kangaroo mouse with an average maximal age of 5.42 years
- Bahamian hutia with an average maximal age of 6 years
- Long-tailed dunnart with an average maximal age of 5 years