Immature form that undergoes metamorphosis before adulthood.
Worker
birth time
very cold, short summer, lots of moss
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
summer mild, +15…+20 °C
Polar tundra
t
When your next jubilee falls in {name} life years
Human
days
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
Winter is dry and snowy
About health
milk
cool, lots of coniferous trees, snow in winter
When your next birthday would fall if you lived as {name}
Sofa
Repro interval
results
land coast flooded by tides — salt marshes, littoral zone
summer warm, winter not very cold
Cool summer
Sex
Upcoming jubilees
Gremllins
mo
rains are very rare, almost a desert
little precipitation in winter, more in summer
alpine meadows and arctic tundra on land
Filters
Warm winter with almost no precipitation
Palearctic realm
Upcoming birthdays
Winter with snow
Truly long lives: 40-100 years. Bowhead whales, albatrosses, giant tortoises recall their birthday at most once a year
Lifespan
high in the mountains, cold, lots of grass and shrubs
Height
Age (juvenile)
Age (from birth to death)
Age (embryo)
Domestic world
most of Europe and Asia, various forests, steppes and tundra
Wanderers
Jubilee = every 10th birthday
dry, cold winter, lots of grass, few trees
Earliest developmental stage inside an egg or womb.
Business sausages
Lifespan average
leaves
Montane grasslands
What do they look like?
Maturity
emergence (insects)
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.
very cold, lots of snow and ice
Pets
{name} jubilee
live in homes and on farms
cm
Temperate coniferous forest
Old-timers
Find an animal or breed...
turns
Rascals
terrestrial forest
terrestrial grassland and steppe
terrestrial intertidal
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
alpine and arctic tundra
winter almost without rain, but lots of snow
Where are they found?
steppe
Low precipitation in winter
Legendary longevity: over 100 years. Galapagos tortoises, Greenland sharks, ocean quahogs celebrate with family once every 4 years
Elders
Bro
Very cold
winter dry and warm
Taxons
if born as {name}
cold, short summer, almost no trees
age
birth date
Palearctic realm
Close
was
Career from 7 to 15 months. Dwarf hamsters, voles, field crickets celebrate their birthday twice a month
The basics
My weight?
Non-stop carnival: they only live a few days. Mayflies, rotifers, midges celebrate their birthday more than twice a day
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
young shoots and leaves of plants
Mosquitoes, fruit flies, small crustaceans hustle for up to 7 months and throw a birthday party every week
Gestation
{name} birthday
No results found
On the map
Pleasant summer
Female ♀
Cold and almost dry
150 to 300 kilograms, 1.6 – 4 meters
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
terrestrial habitat, land surface outside water
sq mm
yr
comfortable summer, +20…+25 °C
How similar?
live in homes and on farms
Male ♂
until the celebration
baby / chick
Tundra
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?
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?
much snow in winter, cold
early young
forests on land — tropical, temperate, boreal
Temperate mixed forest
This is me
most of Europe and Asia, various forests, steppes and tundra
Steppe
Gamers
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.
celebrated their {n} birthday
open grassy spaces — steppes, savannas, prairies
When you would have been born if you lived as {name}
Cold steppe
Daddies
Lifespan maximum
Domestic world
Hermaphrodite ⚥
embryo
summer warm, many oaks, birches, maples
kg
Observations
◉{N} more on tap