Immature form that undergoes metamorphosis before adulthood.
Worker
birth time
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
winter almost without rain, but lots of snow
g
summer mild, +15…+20 °C
t
When your next jubilee falls in {name} life years
Human
very hot and very humid all year round, rain almost every day
very cold, short summer, almost no trees, lots of moss
days
South and Central America, hot and humid, huge forests
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
South and Central America, hot and humid, huge forests
Coconut
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
very hot and almost no rain
Upcoming jubilees
Gremllins
mo
rains are very rare, almost a desert
little precipitation in winter, more in summer
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
rains almost always, very humid
Very hot and almost dry
Age (juvenile)
Age (pupa)
Age (from birth to death)
Age (embryo)
most of Europe and Asia, various forests, steppes and tundra
Age (baby / nestling)
Wanderers
Age (larva)
Jubilee = every 10th birthday
dry, cold winter, lots of grass, few trees
Tundra
Earliest developmental stage inside an egg or womb.
Business sausages
Very cold winter and hot summer
Lifespan average
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.
Winter dry and snowy
Freshwater
very cold winter and very hot summer
from 0.5 to 0.8 kilograms, 0.5 – 1 meter
Pets
all rivers and lakes
Indomalayan realm
Nearctic realm
Indomalayan realm
Lots of rain and cool summer
Hot steppe
{name} jubilee
cm
Old-timers
Find an animal or breed...
Wingspan
turns
Rascals
terrestrial forest
Flooded grasslands
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
Where are they found?
all rivers and lakes
lots of rain, cool summer, snow in winter
Low precipitation 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
Neotropical realm
My weight?
Non-stop carnival: they only live a few days. Mayflies, rotifers, midges celebrate their birthday more than twice a day
young after transformation
Neotropical realm
Potential Habitat
lots of grass, few trees, rains are rare
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
lots of rain, summer not hot
Mass
Mosquitoes, fruit flies, small crustaceans hustle for up to 7 months and throw a birthday party every week
summer very hot, above +25…+30 °C
{name} birthday
Nearctic realm
No results found
North America and Greenland, from tundra to forests
winter almost without rain, but lots of snow
On the map
Pleasant summer
Female ♀
Cold and almost dry
Dry and snowy winter
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
terrestrial habitat, land surface outside water
sq mm
yr
comfortable summer, +20…+25 °C
How similar?
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
from birth to adulthood
Young offspring still dependent on parental care.
What do they eat?
dry and cold almost all year round
Where do they live?
Immature individual that has not yet reached reproductive maturity.
much snow in winter, cold
early young
forests on land — tropical, temperate, boreal
water often floods the land, lots of grass
Freshwater
Temperate mixed forest
Very hot and dry
Duration
Always hot and wet
This is me
Warm summer with almost no rain
most of Europe and Asia, various forests, steppes and tundra
Steppe
Always very wet
Gamers
How are they built?
Cool summer and lots of rain
mm
Theoretical lifespan
ml
Stars
Link copied
My age?
wk
My size?
very hot during the day, cold at night, almost no rain
terrestrial
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?
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
Hermaphrodite ⚥
North America and Greenland, from tundra to forests
embryo
summer warm, many oaks, birches, maples
Length
kg
lots of rain, warm and pleasant summer
Observations
◉{N} more on tap