It is hard to guess what a Black rat weights. But we have the answer:
An adult Black rat (Rattus rattus) on average weights 142 grams (0.31 lbs).
The Black rat is from the family Muridae (genus: Rattus). It is usually born with about 4 grams (0.01 lbs). They can live for up to 4.17 years. When reaching adult age, they grow up to 19.4 cm (0′ 8″). On average, Black rats can have babies 3 times per year with a litter size of 5.
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 black rat (Rattus rattus), also known as ship rat, roof rat, or house rat—is a common long-tailed rodent of the stereotypical rat genus Rattus, in the subfamily Murinae.The black rat is black to light brown in colour with a lighter underside. It is a generalist omnivore and a serious pest to farmers because it feeds on a wide range of agricultural crops. It is sometimes kept as a pet. In parts of India, it is considered sacred and respected in the Karni Mata Temple in Deshnoke.
Animals of the same family as a Black rat
We found other animals of the Muridae family:
- African marsh rat with a weight of 128 grams
- Alston’s cotton rat with a weight of 55 grams
- Notiomys with a weight of 21 grams
- Ungava collared lemming with a weight of 57 grams
- Holochilus chacarius with a weight of 204 grams
- Bushy-tailed woodrat with a weight of 286 grams
- Big-headed African mole-rat with a weight of 622 grams
- Bryant’s woodrat with a weight of 182 grams
- Hispid hocicudo with a weight of 36 grams
- Oligoryzomys destructor with a weight of 25 grams
Animals with the same weight as a Black rat
As a comparison, here are some other animals that weight as much as the Rattus rattus:
- Painted treeshrew bringing 168 grams to the scale
- Stephen’s woodrat bringing 149 grams to the scale
- Unexpected cotton rat bringing 140 grams to the scale
- Leadbeater’s possum bringing 137 grams to the scale
- Bush rat bringing 124 grams to the scale
- Guam flying fox bringing 153 grams to the scale
- Ghost bat bringing 124 grams to the scale
- Creek groove-toothed swamp rat bringing 121 grams to the scale
- Daurian pika bringing 131 grams to the scale
- Buettikofer’s epauletted fruit bat bringing 135 grams to the scale
Animals with the same size as a Black rat
Not that size really matters, but it makes things comparable. So here are a couple of animals that are as big as Black rat:
- Daurian pika with a size of 18 cm (0′ 8″)
- Dark-tailed tree rat with a size of 15.9 cm (0′ 7″)
- Sikkim rat with a size of 19 cm (0′ 8″)
- Tome’s spiny rat with a size of 22.9 cm (0′ 10″)
- Large-scaled mosaic-tailed rat with a size of 15.7 cm (0′ 7″)
- Large vlei rat with a size of 18.2 cm (0′ 8″)
- Luzon striped rat with a size of 17.3 cm (0′ 7″)
- Lesser Angolan epauletted fruit bat with a size of 16.2 cm (0′ 7″)
- Papuan bandicoot with a size of 19.3 cm (0′ 8″)
- White-bellied woolly mouse opossum with a size of 16.1 cm (0′ 7″)
Animals with the same litter size as a Black rat
Here is a list of animals that have the same number of babies per litter (5) as a Black rat:
- Western quoll
- Spectacled dormouse
- Shaw’s jird
- Sagebrush vole
- Dalton’s mouse
- Gansu shrew
- Kultarr
- Northern gracile opossum
- Northwestern deer mouse
- Merriam’s shrew
Animals with the same life expectancy as a Black rat
Completely different animals, but becoming as old as a Black rat:
- Botta’s pocket gopher with an average maximal age of 4.5 years
- Berdmore’s ground squirrel with an average maximal age of 4.25 years
- Long-tailed dunnart with an average maximal age of 5 years
- Lesser mole-rat with an average maximal age of 4.5 years
- Small Japanese mole with an average maximal age of 3.5 years
- Hylaeamys megacephalus with an average maximal age of 3.75 years
- Pallas’s pika with an average maximal age of 4 years
- Greater cane rat with an average maximal age of 4.25 years
- Pyrenean desman with an average maximal age of 5 years
- Paucident planigale with an average maximal age of 5 years