The fat-tailed opossum is a marsupial mammal from South America. It leads a semi-aquatic lifestyle, swims well, and hunts near water.
The fat-tailed opossum differs from other opossums by its thick tail and ability to swim well. It is important for nature as a hunter of insects and small animals.
meadows, prairies, forb glades on land
homogamy, reproduction always with fertilization, no alternation of generations
Worker
Tail size
birth time
breeding
live adult frogs and toads
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
South and Central America, hot and humid, huge forests
Warm summer
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
South and Central America, hot and humid, huge forests
insects
About health
milk
anything
When your next birthday would fall if you lived as {name}
Repro interval
results
summer warm, winter not very cold
Colors
Sex
Upcoming jubilees
Gremllins
mo
live fish
Trophic type
Filters
Upcoming birthdays
Breeding structure built or used for laying eggs and raising offspring.
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
rains almost always, very humid
Age (juvenile)
Age (from birth to death)
Age (embryo)
Wanderers
Jubilee = every 10th birthday
Warm summer and frequent rains
Earliest developmental stage inside an egg or womb.
Business sausages
fruits
Lifespan average
in a terrestrial nest
summer warm, rains frequent
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
small mammals
metamorphosis / end of larval stage
fish
end of acceleration
Share
Find a pet...
Mature, fully developed individual capable of reproduction.
Pouch count
nest hidden in an underground burrow
hot, uneven rains, lots of grass and trees
Actively hunting and capturing live prey.
Pets
{name} jubilee
cm
Old-timers
Find an animal or breed...
turns
Rascals
terrestrial forest
terrestrial herbaceous
fruits
Tail color
Flooded grasslands
drink mother's milk in childhood
Litter size
Tropical savanna
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
with mother
Where are they found?
active nighttime search and catching of prey
Legendary longevity: over 100 years. Galapagos tortoises, Greenland sharks, ocean quahogs celebrate with family once every 4 years
Offspring
Elders
Bro
normal sexual
Taxons
seeds, berries, fruits
if born as {name}
omnivore
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
Neotropical realm
My weight?
Non-stop carnival: they only live a few days. Mayflies, rotifers, midges celebrate their birthday more than twice a day
primary food sources
Neotropical realm
after transformation until death
Potential Habitat
Very hot summer
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
Gestation
from 130 grams to 0.5 kilograms, 0.35 – 0.8 meters
small mammals
land
summer very hot, above +25…+30 °C
{name} birthday
grass
No results found
omnivory, they eat plants, animals, and mushrooms — almost any food
On the map
fry develop in the pouch or mouth of a parent on land
Pleasant summer
Female ♀
all life stages
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
Shelter used specifically for reproduction or nesting.
Maturity
terrestrial habitat, land surface outside water
sq mm
yr
comfortable summer, +20…+25 °C
Snout size
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?
Neither
Young offspring still dependent on parental care.
nest
What do they eat?
Where do they live?
feet
forests on land — tropical, temperate, boreal
water often floods the land, lots of grass
Temperate mixed forest
Duration
frogs
live insects
fish
This is me
Foraging activity occurs primarily during nighttime hours.
Always very wet
Gamers
the mother carries the baby in a pouch or mouth on land
How are they built?
frogs and toads
mm
Theoretical lifespan
ml
Stars
Link copied
My age?
wk
My size?
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?
Warm summer and lots of rain
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
Hermaphrodite ⚥
embryo
Zucchini
summer warm, many oaks, birches, maples
Length
kg
lots of rain, warm and pleasant summer
Observations
◉{N} more on tap