Near-shore terrestrial and marine zones influenced by the sea.
sea almost always under thick ice, very cold
Dry warm summer and snowy winter
Hot and almost no precipitation
Heavy rains in summer
humid
Map
will celebrate their {n} birthday
summer mild, +15…+20 °C
lots of rain, warm summer, snow in winter
Polar tundra
very hot and very humid all year round, rain almost every day
South and Central America, hot and humid, huge forests
Warm summer
very heavy rains in summer, almost no precipitation in winter
marine
South and Central America, hot and humid, huge forests
Warm Sea
tropical forest
Repro interval
Oceanian realm
Polar sea
summer warm, winter not very cold
tropical savanna
dry and hot summer, winter with snow
Cool summer
very hot and almost no rain
Gremllins
hot, rains in summer, little precipitation in winter
pelagic
rains are very rare, almost a desert
Filters
Brackish tidal zone where rivers meet the sea.
arid steppe cold
Warm or hot summer
the coldest and iciest edge, almost always snow and ice
Palearctic realm
Vast, open saltwater expanses beyond the continental shelf.
Upcoming birthdays
rocky hills
wetlands
Open, low-growing shrub habitat on poor soils, home to reptiles, birds, and small mammals.
Lifespan
Non-saline aquatic environments such as rivers and lakes.
high in the mountains, cold, lots of grass and shrubs
Desert and dry shrubs
estuarine
rains almost always, very humid
grassland
Very hot and almost dry
most of Europe and Asia, various forests, steppes and tundra
Wanderers
world of Australasia
Jubilee = every 10th birthday
Warm summer and frequent rains
Business sausages
Lifespan average
water is almost always cold, there may be ice in winter, not hot in summer
Cold Sea
semi desert
Arid steppe
Montane grasslands
hot, there is a dry season, trees shed their leaves
How do they behave?
Broad regions of marshes, swamps, and shallow waters.
Human-built environments within towns and cities.
Freshwater
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
world of Antarctica
all rivers and lakes
snow humid cool
humid forest
Woodlands growing on lowlands directly adjacent to the sea.
mixed forest
coastal forest
Lots of rain and cool summer
Hot steppe
Flowing freshwater channel within a defined bed.
{name} jubilee
live in homes and on farms
cm
Summer from cool to warm
Temperate coniferous forest
Old-timers
turns
Rascals
Cold desert
hot Africa south of the desert, many savannas and forests
meadow
temperate forest
Dry cool summer and snowy winter
Where are they found?
mountain steppe
steppe
all rivers and lakes
Summer almost without rain
Elders
Bro
water is almost always warm, even in winter you can swim, very hot in summer
winter dry and warm
Temperate sea
almost no rain in summer, more precipitation in winter
Forest vegetation covering mountain slopes, varying with altitude.
birth date
Elevated terrain with rocky slopes offering exposed perches and burrowing sites.
Palearctic realm
coastal
riverine
Career from 7 to 15 months. Dwarf hamsters, voles, field crickets celebrate their birthday twice a month
The basics
dry, lots of grass, few trees
My weight?
Open grassland habitat with herbaceous plants and few or no trees.
Non-stop carnival: they only live a few days. Mayflies, rotifers, midges celebrate their birthday more than twice a day
arid steppe
Potential Habitat
Very hot summer
Hot, almost no rain in summer
In husbandry
On the go from 1.3 to 3.5 years. Forest mice, anoles, rainbow fish party on their birthday once a month
cave
lots of rain, summer not hot
Mass
cold winter, lots of coniferous trees: spruce, pine
scrubland
Gestation
from 130 grams to 0.5 kilograms, 0.35 – 0.8 meters
Always hot
No results found
On the map
Female ♀
dry and hot summer, warm and rainy winter
river
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.
Areas along flowing freshwater rivers supporting specialized aquatic and riparian species.
warm temperate humid
birth year
lots of grass, few trees, rains occur
lots of rain, summer from warm to very hot
sq mm
Developed city landscapes and infrastructure zones.
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
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
Mixed tree cover with moderate canopy and understory, supporting diverse woodland fauna.
Lots of rain and warm summer
much snow in winter, cold
Land saturated with water supporting aquatic plants.
boreal forest
world of Afrotropics
Freshwater
savanna
many islands in the Pacific Ocean, warm seas and corals
Always hot and wet
Warm summer with almost no rain
Always very wet
water almost always warm, swimmable even in winter, very hot in summer
How are they built?
mm
Theoretical lifespan
ml
Stars
Link copied
the coldest and iciest edge, almost always snow and ice
My age?
sea almost always covered with thick ice, very cold all year round
water almost always cold, ice possible in winter, summers not hot
Subpolar sea
Southeast Asia and islands, always hot and humid
floodplain
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
very hot all year round, frequent rains, but sometimes dry
Lifespan maximum
very hot and almost no precipitation
Polar Sea
shrubland
taiga
Cold sea
North America and Greenland, from tundra to forests
tropical rainforest
Zucchini
grasslands
kg
lots of rain, warm and pleasant summer
Observations
Worker
Hot summer almost without rain
birth time
woodland
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
wetland
g
t
When your next jubilee falls in {name} life years
Human
hot Africa south of the desert, many savannas and forests
High-elevation terrain above lowland zones, often cooler and wind-exposed.
very cold, short summer, almost no trees, lots of moss
days
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.
Maturity
polar tundra
montane
About health
Warm or hot summer and rains
cool, lots of coniferous trees, snow in winter
alpine
When your next birthday would fall if you lived as {name}
results
summer warm and almost no rain
Southeast Asia and islands, always hot and humid
Sex
Upcoming jubilees
mo
warm temperate humid and hot
little precipitation in winter, more in summer
all seas and oceans
summer very hot, dry, lots of grass
Warm winter with almost no precipitation
Mediterranean forest
always hot and humid, huge trees and vines
Winter with snow
Truly long lives: 40-100 years. Bowhead whales, albatrosses, giant tortoises recall their birthday at most once a year
Oceanian realm
Height
Open plains dominated by grasses with few trees, supporting grazing and ground-nesting species.
Age (juvenile)
Age (from birth to death)
mediterranean shrubland
Hot, little precipitation in winter
Age (embryo)
Domestic world
ocean
warm temperate
dry, cold winter, lots of grass, few trees
forest
Tundra
Very cold winter and hot summer
Warm sea
Temperate Sea
mountain
Dry hot summer and snowy winter
summer warm, rains frequent
What do they look like?
Maturity
peat swamp
emergence (insects)
end of lifespan
How do they live?
fertilization / egg laying
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...
Cold sea
very cold winter and very hot summer
Snowy winter and summer from cool to warm
Pets
Indomalayan realm
Nearctic realm
deciduous forest
Indomalayan realm
Mangrove thickets
sea almost always under thick ice, very cold
Tropical dry broadleaf forest
Open terrain dominated by grasses with few trees.
Cool, humid forest occurring on mountain slopes at mid to high elevations.
Find an animal or breed...
islands and part of Australia, many unusual animals and plants
cloud forest
warm swampy sea shores, trees on roots
Flooded grasslands
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
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
all seas and oceans
desert scrub
High-elevation zones above treeline with cold, rocky terrain.
Open ocean and sea habitats supporting pelagic and deep-water species.
urban
urban areas
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
lots of rain, summer from cool to warm, snow in winter
Very cold
Taxons
hot, rains in winter, almost no precipitation in summer
if born as {name}
mountain forest
water cool or warm, cold in winter, swimmable in summer
cold, short summer, almost no trees
Dark underground chambers used by troglophilic species.
age
water is almost always warm, even in winter you can swim, very hot in summer
Close
was
Marine world
Neotropical realm
Dense tree cover forming a closed canopy habitat.
summer is hot and almost no rain falls
Neotropical realm
Temperate sea
lots of grass, few trees, rains are rare
Arid region with sparse drought-adapted shrubs and grasses receiving limited rainfall.
d
Mosquitoes, fruit flies, small crustaceans hustle for up to 7 months and throw a birthday party every week
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
Open landscape dominated by shrubs and low woody vegetation.
Nearctic realm
North America and Greenland, from tundra to forests
Hot with heavy summer rains
polar
Pleasant summer
Cold and almost dry
tropical dry forest
world of Afrotropics
Polar sea
dry forest
yr
comfortable summer, +20…+25 °C
Tundra
age as {name}
How do they breed?
Open landscape of scattered shrubs and grasses typical of Mediterranean or arid climates.
Open-water column away from shore and bottom.
world of Antarctica
What do they eat?
dry and cold almost all year round
Where do they live?
Marine world
warm and hot
water often floods the land, lots of grass
heathland
Temperate mixed forest
Very hot and dry
dry and warm summer, winter with snow
This is me
most of Europe and Asia, various forests, steppes and tundra
Steppe
Gamers
hot, heavy rains in summer, little precipitation in winter
Cool summer and lots of rain
Temperate steppe
arid
wk
My size?
very hot during the day, cold at night, almost no rain
freshwater
montane forest
Taiga
Asexual
swap
Mangrove forest
cool
celebrated their {n} birthday
Steep, elevated landforms rising significantly above surrounding terrain.
When you would have been born if you lived as {name}
Cold steppe
wet forest
Daddies
equatorial humid
temperate rainforest
summer not hot, from +15 to +25 °C
world of Australasia
Domestic world
Hermaphrodite ⚥
warm swampy shores with trees on roots, crabs live there
summer warm, many oaks, birches, maples
Length
very hot and dry, rare rains, cacti live
Waterlogged forest on thick, acidic peat deposits.
◉{N} more on tap