Immature form that undergoes metamorphosis before adulthood.
Worker
Hot summer almost without rain
sea almost always under thick ice, very cold
birth time
Dry warm summer and snowy winter
Hot and almost no precipitation
Heavy rains in summer
humid
very cold, short summer, lots of moss
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
summer mild, +15…+20 °C
lots of rain, warm summer, snow in winter
Polar tundra
t
When your next jubilee falls in {name} life years
Human
hot Africa south of the desert, many savannas and forests
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
Maturity
South and Central America, hot and humid, huge forests
Coconut
About health
Warm or hot summer and rains
cool, lots of coniferous trees, snow in winter
Warm Sea
When your next birthday would fall if you lived as {name}
tropical forest
Repro interval
results
summer warm and almost no rain
Oceanian realm
Polar sea
summer warm, winter not very cold
Southeast Asia and islands, always hot and humid
tropical savanna
dry and hot summer, winter with snow
Cool summer
Sex
very hot and almost no rain
Upcoming jubilees
Gremllins
mo
hot, rains in summer, little precipitation in winter
warm temperate humid and hot
rains are very rare, almost a desert
little precipitation in winter, more in summer
all seas and oceans
Filters
summer very hot, dry, lots of grass
arid steppe cold
Warm or hot summer
Warm winter with almost no precipitation
the coldest and iciest edge, almost always snow and ice
Palearctic realm
Mediterranean forest
always hot and humid, huge trees and vines
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
high in the mountains, cold, lots of grass and shrubs
Oceanian realm
Height
Desert and dry shrubs
rains almost always, very humid
Very hot and almost dry
Age (juvenile)
Age (from birth to death)
mediterranean shrubland
Hot, little precipitation in winter
Age (embryo)
Domestic world
most of Europe and Asia, various forests, steppes and tundra
Wanderers
warm temperate
world of Australasia
Jubilee = every 10th birthday
dry, cold winter, lots of grass, few trees
Warm summer and frequent rains
Tundra
Earliest developmental stage inside an egg or womb.
Business sausages
Very cold winter and hot summer
Warm sea
Lifespan average
Temperate Sea
water is almost always cold, there may be ice in winter, not hot in summer
Cold Sea
Arid steppe
Dry hot summer and snowy winter
Montane grasslands
summer warm, rains frequent
What do they look like?
Maturity
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
very dry and cold, very little snow and rain
Share
arid steppe hot
Find a pet...
Mature, fully developed individual capable of reproduction.
Freshwater
Cold sea
very cold, lots of snow and ice
hot, uneven rains, lots of grass and trees
water is cool or warm, cold in winter, comfortable to swim in summer
very cold winter and very hot summer
from 0.5 to 0.8 kilograms, 0.5 – 1 meter
Snowy winter and summer from cool to warm
world of Antarctica
Pets
all rivers and lakes
Indomalayan realm
snow humid cool
humid forest
Nearctic realm
deciduous forest
Indomalayan realm
Mangrove thickets
mixed forest
sea almost always under thick ice, very cold
Tropical dry broadleaf forest
Lots of rain and cool summer
Hot steppe
{name} jubilee
live in homes and on farms
cm
Summer from cool to warm
Temperate coniferous forest
Old-timers
Find an animal or breed...
turns
islands and part of Australia, many unusual animals and plants
Rascals
Cold desert
terrestrial forest
cloud forest
warm swampy sea shores, trees on roots
Flooded grasslands
hot Africa south of the desert, many savannas and forests
Tropical savanna
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
Dry cool summer and snowy winter
How to care for them?
monsoonal
desert
Living from 25 to 40 years. Orangutans, bald eagles, African elephants celebrate their birthday twice a year
coniferous forest
°C
Not specified
the sea is covered with ice most of the year or has many ice floes, very cold in winter
warm temperate humid cool
Where are they found?
all seas and oceans
mountain steppe
steppe
desert scrub
all rivers and lakes
Summer almost without rain
lots of rain, cool summer, snow in winter
alpine meadow
Low precipitation in winter
Legendary longevity: over 100 years. Galapagos tortoises, Greenland sharks, ocean quahogs celebrate with family once every 4 years
Tropical moist forest
Elders
lots of rain, summer from cool to warm, snow in winter
Bro
Very cold
water is almost always warm, even in winter you can swim, very hot in summer
winter dry and warm
Taxons
Temperate sea
almost no rain in summer, more precipitation in winter
hot, rains in winter, almost no precipitation in summer
if born as {name}
water cool or warm, cold in winter, swimmable in summer
cold, short summer, almost no trees
age
water is almost always warm, even in winter you can swim, very hot in summer
birth date
Palearctic realm
Close
was
Career from 7 to 15 months. Dwarf hamsters, voles, field crickets celebrate their birthday twice a month
Marine world
The basics
dry, lots of grass, few trees
Neotropical realm
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
Neotropical realm
arid steppe
Temperate sea
Potential Habitat
lots of grass, few trees, rains are rare
Very hot summer
Hot, almost no rain in 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
cold winter, lots of coniferous trees: spruce, pine
Mosquitoes, fruit flies, small crustaceans hustle for up to 7 months and throw a birthday party every week
Gestation
subtropical forest
islands and part of Australia, many unusual animals and plants
water is cool or warm, cold in winter, you can swim in summer
summer very hot, above +25…+30 °C
Warm sea
{name} birthday
Nearctic realm
Always hot
No results found
North America and Greenland, from tundra to forests
Hot with heavy summer rains
polar
On the map
Pleasant summer
Female ♀
dry and hot summer, warm and rainy winter
Cold and almost dry
tropical dry forest
world of Afrotropics
Polar sea
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.
warm temperate humid
dry forest
birth year
lots of grass, few trees, rains occur
lots of rain, summer from warm to very hot
terrestrial habitat, land surface outside water
sq mm
yr
comfortable summer, +20…+25 °C
How similar?
dry and cool summer, winter with snow
live in homes and on farms
water is almost always cold, there may be ice in winter, not hot in summer
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
flooded grassland
world of Antarctica
What do they eat?
dry and cold almost all year round
Where do they live?
Lots of rain and warm summer
Marine world
much snow in winter, cold
warm and hot
early young
forests on land — tropical, temperate, boreal
water often floods the land, lots of grass
boreal forest
world of Afrotropics
Freshwater
savanna
Temperate mixed forest
Very hot and dry
dry and warm summer, winter with snow
many islands in the Pacific Ocean, warm seas and corals
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
water almost always warm, swimmable even in winter, very hot in summer
hot, heavy rains in summer, little precipitation in winter
How are they built?
Cool summer and lots of rain
Temperate steppe
mm
Theoretical lifespan
arid
ml
Stars
Link copied
the coldest and iciest edge, almost always snow and ice
My age?
wk
My size?
very hot during the day, cold at night, almost no rain
terrestrial
sea almost always covered with thick ice, very cold all year round
Taiga
Asexual
water almost always cold, ice possible in winter, summers not hot
swap
Subpolar sea
Southeast Asia and islands, always hot and humid
floodplain
Mangrove forest
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
rainforest
many islands in the Pacific Ocean, warm seas and corals
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
Cold steppe
wet forest
Daddies
equatorial humid
Lifespan maximum
temperate rainforest
summer not hot, from +15 to +25 °C
world of Australasia
very hot and almost no precipitation
Domestic world
Polar Sea
Hermaphrodite ⚥
taiga
Cold sea
North America and Greenland, from tundra to forests
tropical rainforest
embryo
warm swampy shores with trees on roots, crabs live there
summer warm, many oaks, birches, maples
Length
kg
very hot and dry, rare rains, cacti live
lots of rain, warm and pleasant summer
Observations
◉{N} more on tap