Immature form that undergoes metamorphosis before adulthood.
Worker
Hot summer almost without rain
birth time
Dry warm summer and snowy winter
woodland
Hot and almost no precipitation
Heavy rains in summer
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
wetland
g
summer mild, +15…+20 °C
lots of rain, warm summer, snow in winter
t
When your next jubilee falls in {name} life years
Human
hot Africa south of the desert, many savannas and forests
High-elevation terrain above lowland zones, often cooler and wind-exposed.
very cold, short summer, almost no trees, lots of moss
days
Warm summer
How old you would be if you lived as {name}
summer from pleasant to very hot
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.
very heavy rains in summer, almost no precipitation in winter
adult
Maturity
montane
About health
When your next birthday would fall if you lived as {name}
results
summer warm and almost no rain
summer warm, winter not very cold
Southeast Asia and islands, always hot and humid
Cool summer
Sex
Upcoming jubilees
Gremllins
mo
rains are very rare, almost a desert
Filters
summer very hot, dry, lots of grass
Warm or hot summer
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
grassland
Age (from birth to death)
most of Europe and Asia, various forests, steppes and tundra
Wanderers
warm temperate
Jubilee = every 10th birthday
dry, cold winter, lots of grass, few trees
forest
Tundra
Earliest developmental stage inside an egg or womb.
Business sausages
Lifespan average
Arid steppe
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
arid steppe hot
Find a pet...
Mature, fully developed individual capable of reproduction.
Pets
Indomalayan realm
Indomalayan realm
Lots of rain and cool summer
Open terrain dominated by grasses with few trees.
Hot steppe
{name} jubilee
cm
Old-timers
Find an animal or breed...
Wingspan
turns
Rascals
hot Africa south of the desert, many savannas and forests
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
temperate forest
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
Where are they found?
steppe
lots of rain, cool summer, snow in winter
Legendary longevity: over 100 years. Galapagos tortoises, Greenland sharks, ocean quahogs celebrate with family once every 4 years
Elders
Bro
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
dry, lots of grass, few trees
Dense tree cover forming a closed canopy habitat.
My weight?
summer is hot and almost no rain falls
Non-stop carnival: they only live a few days. Mayflies, rotifers, midges celebrate their birthday more than twice a day
arid steppe
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
{name} birthday
Open landscape dominated by shrubs and low woody vegetation.
No results found
On the map
Pleasant summer
Female ♀
Cold and almost dry
world of Afrotropics
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
sq mm
yr
comfortable summer, +20…+25 °C
How similar?
Male ♂
until the celebration
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
Mixed tree cover with moderate canopy and understory, supporting diverse woodland fauna.
What do they eat?
dry and cold almost all year round
Where do they live?
Lots of rain and warm summer
much snow in winter, cold
Land saturated with water supporting aquatic plants.
early young
world of Afrotropics
savanna
Very hot and dry
dry and warm summer, winter with snow
This is me
Warm summer with almost no rain
most of Europe and Asia, various forests, steppes and tundra
Steppe
Gamers
How are they built?
mm
Theoretical lifespan
ml
Stars
Link copied
My age?
wk
My size?
very hot during the day, cold at night, almost no rain
Asexual
swap
Southeast Asia and islands, always hot and humid
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.
Warm summer and lots of rain
celebrated their {n} birthday
When you would have been born if you lived as {name}
Cold steppe
Daddies
Lifespan maximum
very hot and almost no precipitation
Hermaphrodite ⚥
shrubland
Grape
8 to 11 grams, 1.5 – 8 centimeters
embryo
Length
kg
lots of rain, warm and pleasant summer
Observations
◉{N} more on tap