The fat-tailed mouse opossum is a small carnivorous marsupial mammal from Australia. It has a short body, pointed muzzle, and thick tail where fat is stored for energy reserves.
The fat-tailed mouse opossum differs from related species by its thick tail for fat storage, which helps it survive in dry areas. It is important for nature because it controls insect populations and serves as prey for larger predators.
meadows, prairies, forb glades on land
homogamy, reproduction always with fertilization, no alternation of generations
Worker
Tail size
birth time
breeding
Hot and almost no precipitation
Dogs, dolphins, lynx hang out for 9-25 years and party on their birthday three times a year
m
Map
will celebrate their {n} birthday
g
t
When your next jubilee falls in {name} life years
Human
days
How old you would be if you lived as {name}
Theoretical maximum lifespan estimated from the Dynamic Energy Budget (DEB) mathematical model. This value reflects a biological potential derived from metabolic parameters, not from direct observation — real recorded lifespans are often significantly shorter.
adult
Maturity
invertebrates
insects
About health
milk
When your next birthday would fall if you lived as {name}
Repro interval
results
Colors
Sex
very hot and almost no rain
Upcoming jubilees
Gremllins
mo
Uses an excavated underground tunnel or chamber for refuge or nesting.
rains are very rare, almost a desert
Trophic type
all living animals without backbone
Filters
Mediterranean forest
Upcoming birthdays
eggs, roe or offspring develop in a nest built on the ground or close to it
Truly long lives: 40-100 years. Bowhead whales, albatrosses, giant tortoises recall their birthday at most once a year
Lifespan
in a burrow
Height
Desert and dry shrubs
Very hot and almost dry
Age (juvenile)
Age (from birth to death)
Age (embryo)
Wanderers
Food items are collected from exposed outer surfaces of substrates.
small reptiles
world of Australasia
Jubilee = every 10th birthday
Earliest developmental stage inside an egg or womb.
Business sausages
Lifespan average
in a terrestrial nest
What do they look like?
Maturity
emergence (insects)
in the pouch or mouth
end of lifespan
How do they live?
fertilization / egg laying
How do they behave?
birth / hatching
metamorphosis / end of larval stage
end of acceleration
Share
arid steppe hot
Find a pet...
Mature, fully developed individual capable of reproduction.
Pouch count
nest hidden in an underground burrow
Actively hunting and capturing live prey.
Pets
small lizards
Feeding occurs primarily on land or in vegetation.
night hunting
{name} jubilee
cm
Old-timers
Find an animal or breed...
small rodents
turns
islands and part of Australia, many unusual animals and plants
Rascals
terrestrial herbaceous
olfaction
Flooded grasslands
drink mother's milk in childhood
Litter size
Map data sources: Ecosystem classification — IUCN Global Ecosystem Typology (Keith et al., 2022), indicative distribution maps Keith et al. (2020), https://doi.org/10.5281/zenodo.3546513; Large Marine Ecosystems — NOAA LME Program; Bathymetry — GEBCO Bathymetric Compilation Group (2026), GEBCO_2026 Grid, https://doi.org/10.5285/4f68d5c7-45eb-f999-e063-7086abc036fa; Climate data — Generated using Copernicus Climate Change Service information; Species occurrence data — GBIF.org, Derived dataset "all animals", https://zveriki.com/dataset/dataset.tsv; Terrestrial ecoregions — RESOLVE Ecoregions 2017 (Dinerstein et al., 2017), CC BY 4.0
How to care for them?
Living from 25 to 40 years. Orangutans, bald eagles, African elephants celebrate their birthday twice a year
°C
Not specified
Actively searching habitats to locate food items.
with mother
Where are they found?
steppe
Embryo size
Legendary longevity: over 100 years. Galapagos tortoises, Greenland sharks, ocean quahogs celebrate with family once every 4 years
Offspring
Elders
Bro
normal sexual
Taxons
carnivore
if born as {name}
Forages within or on the surface of soil or substrate.
spiders
age
birth date
small mammals — mice, shrews, bats
rest
Fur color
Close
was
Career from 7 to 15 months. Dwarf hamsters, voles, field crickets celebrate their birthday twice a month
nocturnal
The basics
My weight?
Non-stop carnival: they only live a few days. Mayflies, rotifers, midges celebrate their birthday more than twice a day
surface
primary food sources
teeth
burrow
after transformation until death
Potential Habitat
lots of grass, few trees, rains are rare
d
In husbandry
On the go from 1.3 to 3.5 years. Forest mice, anoles, rainbow fish party on their birthday once a month
Mass
Mosquitoes, fruit flies, small crustaceans hustle for up to 7 months and throw a birthday party every week
terrestrial
Gestation
islands and part of Australia, many unusual animals and plants
small mammals
land
{name} birthday
soil
grass
No results found
Eyes color
On the map
lunge
fry develop in the pouch or mouth of a parent on land
all life stages
Female ♀
dry and hot summer, warm and rainy winter
Cold and almost dry
Map data sources: Ecosystem classification — IUCN Global Ecosystem Typology (Keith et al., 2022), indicative distribution maps Keith et al. (2020), https://doi.org/10.5281/zenodo.3546513; Large Marine Ecosystems — NOAA LME Program; Bathymetry — GEBCO Bathymetric Compilation Group (2026), GEBCO_2026 Grid, https://doi.org/10.5285/4f68d5c7-45eb-f999-e063-7086abc036fa; Climate data — Generated using Copernicus Climate Change Service information; Species occurrence data — GBIF.org, Derived dataset "all animals", https://zveriki.com/dataset/dataset.tsv; Terrestrial ecoregions — RESOLVE Ecoregions 2017 (Dinerstein et al., 2017), CC BY 4.0
Potential habitat modelled from GBIF occurrence data. Map © Zveriki.com, licensed under CC BY 4.0.
birth year
lots of grass, few trees, rains occur
Shelter used specifically for reproduction or nesting.
Maturity
hearing
terrestrial habitat, land surface outside water
sq mm
yr
protection from sun
How similar?
Male ♂
until the celebration
baby / chick
age as {name}
How do they breed?
On the go from 3.5 to 6 years. Hedgehogs, crows, lizards treat themselves to birthday snacks 6 times a year
What if eaten?
spiders
Very dry
Neither
Young offspring still dependent on parental care.
What do they eat?
dry and cold almost all year round
Where do they live?
Hard dental structures used to bite, tear, or scrape food.
water often floods the land, lots of grass
Temperate mixed forest
Very hot and dry
Duration
live insects
This is me
from 11 to 16 grams, 1.5 – 12 centimeters
Foraging activity occurs primarily during nighttime hours.
Steppe
Gamers
the mother carries the baby in a pouch or mouth on land
Teeth count
How are they built?
Temperate steppe
mm
Theoretical lifespan
ml
Stars
Link copied
My age?
wk
My size?
live spiders — arachnids of all sizes
very hot during the day, cold at night, almost no rain
terrestrial
Asexual
swap
active predation
Rabbits, falcons, red-eared turtles hang out for 6-9 years and party on their birthday four times a year
Where do they take shelter?
Denotes a grassland or steppe habitat preference.
inhabit and develop on land, outside water bodies
celebrated their {n} birthday
When you would have been born if you lived as {name}
Daddies
Lifespan maximum
world of Australasia
very hot and almost no precipitation
foraging
Hermaphrodite ⚥
Strawberry
embryo
summer warm, many oaks, birches, maples
Length
kg
very hot and dry, rare rains, cacti live
Rapid forward strike to seize prey.
Observations
small lizards and snakes
◉{N} more on tap