estuary and delta
Legendary longevity: over 100 years. Galapagos tortoises, Greenland sharks, ocean quahogs celebrate with family once every 4 years
Tropical moist forest
Worker
Elders
Bro
birth time
Taxons
Hot and almost no precipitation
Heavy rains in summer
rivers and streams
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
cold, short summer, almost no trees
g
age
summer mild, +15…+20 °C
t
When your next jubilee falls in {name} life years
Human
birth date
Palearctic realm
Close
very hot and very humid all year round, rain almost every day
was
very cold, short summer, almost no trees, lots of moss
days
Career from 7 to 15 months. Dwarf hamsters, voles, field crickets celebrate their birthday twice a month
The basics
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.
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
Potential Habitat
About health
lots of grass, few trees, rains are rare
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
summer warm and almost no rain
Mass
Mosquitoes, fruit flies, small crustaceans hustle for up to 7 months and throw a birthday party every week
Southeast Asia and islands, always hot and humid
Cool summer
Sex
{name} birthday
Upcoming jubilees
Gremllins
mo
rains are very rare, almost a desert
Always hot
No results found
Hot with heavy summer rains
Filters
On the map
Female ♀
Palearctic realm
always hot and humid, huge trees and vines
Upcoming birthdays
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
terrestrial habitat, land surface outside water
Age (from birth to death)
sq mm
yr
most of Europe and Asia, various forests, steppes and tundra
Wanderers
How similar?
Jubilee = every 10th birthday
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?
Tundra
Very dry
Neither
Business sausages
zones of mixing fresh and sea water — river deltas, estuaries
Lifespan average
What do they eat?
Where do they live?
forests on land — tropical, temperate, boreal
What do they look like?
Maturity
emergence (insects)
end of lifespan
Freshwater
How do they live?
fertilization / egg laying
How do they behave?
birth / hatching
metamorphosis / end of larval stage
end of acceleration
Share
Very hot and dry
Find a pet...
Always hot and wet
This is me
Warm summer with almost no rain
most of Europe and Asia, various forests, steppes and tundra
Steppe
freshwater
Always very wet
Gamers
hot, heavy rains in summer, little precipitation in winter
Pets
How are they built?
Indomalayan realm
mm
Theoretical lifespan
Indomalayan realm
ml
Stars
Link copied
My age?
wk
My size?
very hot during the day, cold at night, almost no rain
terrestrial
Lots of rain and cool summer
{name} jubilee
Asexual
swap
freshwater environment — rivers, lakes, ponds, swamps
cm
Old-timers
Find an animal or breed...
Southeast Asia and islands, always hot and humid
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
terrestrial forest
celebrated their {n} birthday
When you would have been born if you lived as {name}
very hot all year round, frequent rains, but sometimes dry
flowing fresh waters — rivers, streams, mountain torrents
Daddies
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
all rivers and lakes
Length
kg
lots of rain, warm and pleasant summer
lots of rain, cool summer, snow in winter
Observations
◉{N} more on tap