Low precipitation in winter
Legendary longevity: over 100 years. Galapagos tortoises, Greenland sharks, ocean quahogs celebrate with family once every 4 years
Immature form that undergoes metamorphosis before adulthood.
Worker
Elders
Bro
birth time
Taxons
Hot and almost no precipitation
almost no rain in summer, more precipitation in winter
hot, rains in winter, almost no precipitation 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
t
When your next jubilee falls in {name} life years
Human
birth date
Close
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}
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
adult
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
Hot, almost no rain in 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
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
Sex
summer very hot, above +25…+30 °C
{name} birthday
Upcoming jubilees
Gremllins
mo
hot, rains in summer, little precipitation in winter
Nearctic realm
rains are very rare, almost a desert
Always hot
No results found
little precipitation in winter, more in summer
North America and Greenland, from tundra to forests
Filters
On the map
summer very hot, dry, lots of grass
Pleasant summer
Female ♀
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
rains almost always, very humid
Age (juvenile)
terrestrial habitat, land surface outside water
Age (from birth to death)
sq mm
yr
Hot, little precipitation in winter
comfortable summer, +20…+25 °C
Age (embryo)
Wanderers
Age (larva)
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
Earliest developmental stage inside an egg or womb.
Business sausages
from birth to adulthood
Lifespan average
What do they eat?
Where do they live?
young after fast growth
Immature individual that has not yet reached reproductive maturity.
from birth to death
Juvenile stage following larval metamorphosis but not yet adult.
early young
summer warm, rains frequent
forests on land — tropical, temperate, boreal
What do they look like?
Maturity
water often floods the land, lots of grass
emergence (insects)
end of lifespan
hot, there is a dry season, trees shed their leaves
How do they live?
fertilization / egg laying
How do they behave?
birth / hatching
metamorphosis / end of larval stage
end of acceleration
Share
Duration
Find a pet...
Mature, fully developed individual capable of reproduction.
hot, uneven rains, lots of grass and trees
This is me
from 11 to 16 grams, 1.5 – 12 centimeters
Steppe
Always very wet
Gamers
Pets
How are they built?
Nearctic realm
mm
Theoretical lifespan
ml
Stars
Link copied
My age?
terrestrial shrubland
wk
My size?
Tropical dry broadleaf forest
terrestrial
Hot steppe
{name} jubilee
Asexual
swap
terrestrial shrub habitats — maquis, chaparral, bush
cm
Old-timers
Find an animal or breed...
Wingspan
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
Flooded grasslands
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
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 ⚥
Strawberry
Where are they found?
North America and Greenland, from tundra to forests
embryo
Length
kg
lots of rain, warm and pleasant summer
Summer almost without rain
Observations
◉{N} more on tap