Legendary longevity: over 100 years. Galapagos tortoises, Greenland sharks, ocean quahogs celebrate with family once every 4 years
Worker
Elders
lots of rain, summer from cool to warm, snow in winter
Bro
birth time
lakes and ponds
Taxons
Hot and almost no precipitation
Heavy rains in summer
if born as {name}
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
age
lots of rain, warm summer, snow in winter
summer mild, +15…+20 °C
t
When your next jubilee falls in {name} life years
Human
birth date
Close
very hot and very humid all year round, rain almost every day
was
days
South and Central America, hot and humid, huge forests
Career from 7 to 15 months. Dwarf hamsters, voles, field crickets celebrate their birthday twice a month
Warm summer
The basics
How old you would be if you lived as {name}
summer from pleasant to very hot
Neotropical realm
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.
My weight?
Non-stop carnival: they only live a few days. Mayflies, rotifers, midges celebrate their birthday more than twice a day
very heavy rains in summer, almost no precipitation in winter
Maturity
Neotropical realm
South and Central America, hot and humid, huge forests
Potential Habitat
About health
lots of grass, few trees, rains are rare
Very hot summer
When your next birthday would fall if you lived as {name}
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
results
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 warm, winter not very cold
Cool summer
Sex
summer very hot, above +25…+30 °C
{name} birthday
Upcoming jubilees
Gremllins
mo
Nearctic realm
rains are very rare, almost a desert
No results found
North America and Greenland, from tundra to forests
Filters
On the map
summer very hot, dry, lots of grass
Warm or hot summer
Pleasant summer
Female ♀
Upcoming birthdays
standing fresh waters — lakes, ponds, oxbow lakes
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.
Truly long lives: 40-100 years. Bowhead whales, albatrosses, giant tortoises recall their birthday at most once a year
Lifespan
birth year
16 to 24 grams, 7 – 12 centimeters
rains almost always, very humid
Age (from birth to death)
sq mm
yr
comfortable summer, +20…+25 °C
Wanderers
How similar?
Jubilee = every 10th birthday
Male ♂
until the celebration
Warm summer and frequent rains
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
Business sausages
Lifespan average
What do they eat?
Where do they live?
Lots of rain and warm summer
summer warm, rains frequent
What do they look like?
Maturity
emergence (insects)
end of lifespan
River estuary into the sea
Freshwater
How do they live?
fertilization / egg laying
How do they behave?
birth / hatching
metamorphosis / end of larval stage
Temperate mixed forest
end of acceleration
Share
Very hot and dry
Find a pet...
Freshwater
hot, uneven rains, lots of grass and trees
Always hot and wet
This is me
Steppe
freshwater
Always very wet
Gamers
where the river flows into the sea, slightly salty water, lots of fish and birds
Snowy winter and summer from cool to warm
Pets
How are they built?
all rivers and lakes
Cool summer and lots of rain
Nearctic realm
mm
Theoretical lifespan
ml
Stars
Link copied
My age?
wk
My size?
very hot during the day, cold at night, almost no rain
Lots of rain and cool summer
Hot steppe
{name} jubilee
Asexual
swap
freshwater environment — rivers, lakes, ponds, swamps
cm
Old-timers
Find an animal or breed...
turns
Rabbits, falcons, red-eared turtles hang out for 6-9 years and party on their birthday four times a year
Rascals
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}
Daddies
Tropical savanna
Lifespan maximum
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?
very hot and almost no precipitation
Living from 25 to 40 years. Orangutans, bald eagles, African elephants celebrate their birthday twice a year
°C
Not specified
Hermaphrodite ⚥
Where are they found?
Mandarin
North America and Greenland, from tundra to forests
all rivers and lakes
summer warm, many oaks, birches, maples
Length
kg
lots of rain, warm and pleasant summer
lots of rain, cool summer, snow in winter
Observations
◉{N} more on tap