The monjon, or rock wallaby, is the smallest rock wallaby. This marsupial mammal lives among rocks in northern Australia and weighs less than one and a half kilograms.
The monjon differs from other rock wallabies by its very small size and short ears. It helps preserve plants in rocky areas and serves as food for local predators.
meadows, prairies, forb glades on land
Worker
Tail size
birth time
breeding
nipping grass
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
nest inside a tree trunk or in a cave/crevice, only the mother provides parental care for the offspring
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
Coconut
About health
When your next birthday would fall if you lived as {name}
Repro interval
results
Colors
Sex
Upcoming jubilees
Gremllins
mo
hot, rains in summer, little precipitation in winter
little precipitation in winter, more in summer
Trophic type
Filters
Captures or processes food by biting or nipping with the mouth.
young shoots and sprouts
leaves
grass
den
Upcoming birthdays
nest inside a tree trunk or in a cave/crevice
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
leaf
tongue
in hollows and caves
Age (juvenile)
Age (from birth to death)
Hot, little precipitation in winter
Age (embryo)
Wanderers
world of Australasia
Jubilee = every 10th birthday
Earliest developmental stage inside an egg or womb.
Business sausages
Lifespan average
in a terrestrial nest
leaves
grasses
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
Find a pet...
Mature, fully developed individual capable of reproduction.
Pouch count
hot, uneven rains, lots of grass and trees
from 0.5 to 0.8 kilograms, 0.5 – 1 meter
Pets
Primary oral structure used to seize, manipulate, or ingest food.
shoots
biting
Feeding occurs primarily on land or in vegetation.
{name} jubilee
paw
cm
Old-timers
Find an animal or breed...
mouth
turns
islands and part of Australia, many unusual animals and plants
Rascals
terrestrial grassland and steppe
terrestrial herbaceous
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
grazing
°C
Not specified
Actively searching habitats to locate food items.
with mother
Where are they found?
steppe
Hind legs size
herbivore
Describes food handling or digging performed with the forelimbs.
Feeds by cropping or nibbling low-growing vegetation or algae.
Low precipitation in winter
Legendary longevity: over 100 years. Galapagos tortoises, Greenland sharks, ocean quahogs celebrate with family once every 4 years
Offspring
Elders
leaves and stems of grasses and other herbaceous vegetation
Bro
Taxons
if born as {name}
caring mother
Foraging takes place among trees and woody vegetation.
age
birth date
tearing
rest
Fur color
Close
was
Career from 7 to 15 months. Dwarf hamsters, voles, field crickets celebrate their birthday twice a month
The basics
climbing
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
teeth
Potential Habitat
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
young shoots and leaves of plants
Mosquitoes, fruit flies, small crustaceans hustle for up to 7 months and throw a birthday party every week
terrestrial
Plants
Gestation
Rips or shreds food using teeth, beak or claws.
islands and part of Australia, many unusual animals and plants
land
{name} birthday
Food is gathered directly from leaf surfaces.
Always hot
No results found
Hot with heavy summer rains
Pouch color
On the map
young shoots, sprouts, green plant shoots
fry develop in the pouch or mouth of a parent on land
all life stages
Female ♀
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
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?
Neither
Moving up vertical surfaces like trunks or rocks to reach food.
Young offspring still dependent on parental care.
What do they eat?
Where do they live?
Hard dental structures used to bite, tear, or scrape food.
Duration
This is me
rocky
Gamers
the mother carries the baby in a pouch or mouth on land
hot, heavy rains in summer, little precipitation in winter
How are they built?
Temperate steppe
mm
Theoretical lifespan
ml
Stars
Link copied
My age?
wk
My size?
terrestrial
Asexual
swap
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
open grassy spaces — steppes, savannas, prairies
When you would have been born if you lived as {name}
very hot all year round, frequent rains, but sometimes dry
Daddies
Lifespan maximum
world of Australasia
foraging
Hermaphrodite ⚥
Uses the tongue to locate, manipulate, or ingest food items.
embryo
Length
kg
arboreal
Observations
◉{N} more on tap