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
Height at the withers at the moment when fast growth ends.
Maximum typical adult mass
very heavy rains in summer, almost no precipitation in winter
Length of the hind limb from the pelvis.
Handbag
South and Central America, hot and humid, huge forests
from 1.2 to 4.8 kilograms, 0.7 – 1.4 meters
Warm Sea
tropical forest
Circumference of the neck in the middle, where a collar usually sits.
Repro interval
land coast flooded by tides — salt marshes, littoral zone
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
rains are very rare, almost a desert
Filters
carnivory / predation, hunt and eat other live animals
arid steppe cold
Warm or hot summer
the coldest and iciest edge, almost always snow and ice
Palearctic realm
Neck girth at the moment when fast growth ends.
Upcoming birthdays
Lifespan
high in the mountains, cold, lots of grass and shrubs
Desert and dry shrubs
rains almost always, very humid
Very hot and almost dry
most of Europe and Asia, various forests, steppes and tundra
Neck girth at the end of fast growth
Wanderers
Maximum typical adult tail length
world of Australasia
Jubilee = every 10th birthday
Warm summer and frequent rains
Earliest developmental stage inside an egg or womb.
Chest girth at the moment when fast growth ends.
Business sausages
Lifespan average
water is almost always cold, there may be ice in winter, not hot in summer
Cold Sea
Arid steppe
Montane grasslands
hot, there is a dry season, trees shed their leaves
How do they behave?
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
mixed 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
turns
Circumference of the chest just behind the front limbs.
Rascals
Cold desert
hot Africa south of the desert, many savannas and forests
temperate forest
Dry cool summer and snowy winter
Share
Where are they found?
mountain steppe
steppe
all rivers and lakes
Summer almost without rain
Upper limit of the mass of a healthy, non-obese adult; records are not counted.
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
Length of the front limb from the shoulder blade.
birth date
Palearctic realm
Hind legs length at the end of fast growth
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?
Non-stop carnival: they only live a few days. Mayflies, rotifers, midges celebrate their birthday more than twice a day
adolescent
arid steppe
after transformation until death
Potential Habitat
Very hot summer
Chest width at the shoulders
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
lots of rain, summer not hot
Mass
Tail length
cold winter, lots of coniferous trees: spruce, pine
Gestation
Always hot
No results found
On the map
Female ♀
dry and hot summer, warm and rainy winter
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
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
How similar?
end of fast growth
dry and cool summer, winter with snow
live in homes and on farms
sexual maturity
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
Young offspring still dependent on parental care.
Lots of rain and warm summer
much snow in winter, cold
forests on land — tropical, temperate, boreal
boreal forest
world of Afrotropics
Freshwater
savanna
Duration
How big will it grow?
many islands in the Pacific Ocean, warm seas and corals
Always hot and wet
Warm summer with almost no rain
Body length without the tail: measured along the back from the base of the ears to the start of the tail.
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?
terrestrial
sea almost always covered with thick ice, very cold all year round
water almost always cold, ice possible in winter, summers not hot
Front legs length at the end of fast growth
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
open grassy spaces — steppes, savannas, prairies
very hot all year round, frequent rains, but sometimes dry
Sign up to add your favourite animals for yourself and your pets
Lifespan maximum
very hot and almost no precipitation
Polar Sea
taiga
Cold sea
North America and Greenland, from tundra to forests
tropical rainforest
embryo
Front legs length at the moment when fast growth ends.
kg
lots of rain, warm and pleasant summer
Observations
Worker
Hot summer almost without rain
birth time
Chest width at the shoulders at the moment when fast growth ends.
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
g
t
When your next jubilee falls in {name} life years
Human
hot Africa south of the desert, many savannas and forests
Upper limit of the adult tail length; records are not counted.
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
Chest girth
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.
live animals
adult cat
Maturity
Width of the chest at shoulder level, seen from the front.
About health
Warm or hot summer and rains
milk
cool, lots of coniferous trees, snow in winter
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
Body length without the tail at the moment when fast growth ends.
little precipitation in winter, more in summer
alpine meadows and arctic tundra on land
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
Age (juvenile)
Age (from birth to death)
mediterranean shrubland
Hot, little precipitation in winter
Age (embryo)
Domestic world
Age (baby / nestling)
warm temperate
Tail length at the end of fast growth
dry, cold winter, lots of grass, few trees
More:
Tundra
Very cold winter and hot summer
Warm sea
Temperate Sea
Dry hot summer and snowy winter
summer warm, rains frequent
Maximum typical adult body length
What do they look like?
Maturity
emergence (insects)
Upper limit of the adult height at the withers; records are not counted.
end of lifespan
Tail length at the moment when fast growth ends.
Hind legs length at the moment when fast growth ends.
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...
Mature, fully developed individual capable of reproduction.
Chest girth at the end of fast growth
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
Mass at the moment when fast growth ends.
Chest width at the shoulders at the end of fast growth
Find an animal or breed...
islands and part of Australia, many unusual animals and plants
terrestrial forest
terrestrial grassland and steppe
cloud forest
terrestrial intertidal
warm swampy sea shores, trees on roots
Flooded grasslands
Upper limit of the adult body length without the tail; records are not counted.
drink mother's milk in childhood
Front limbs length
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
alpine and arctic tundra
warm temperate humid cool
all seas and oceans
desert scrub
lots of rain, cool summer, snow in winter
Body length at the end of fast growth
alpine meadow
Low precipitation in winter
Legendary longevity: over 100 years. Galapagos tortoises, Greenland sharks, ocean quahogs celebrate with family once every 4 years
Neck girth
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}
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
Close
was
Marine world
Neotropical realm
summer is hot and almost no rain falls
Neotropical realm
Temperate sea
lots of grass, few trees, rains are rare
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
Nearctic realm
Link copied
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
Height at the withers at the end of fast growth
dry forest
Mass at the end of fast growth
yr
comfortable summer, +20…+25 °C
kitten
Tundra
age as {name}
How do they breed?
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
Height at the withers: the distance from the ground to the highest point of the shoulders of a standing animal.
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?
Maximum typical adult height at the withers
very hot during the day, cold at night, almost no rain
Taiga
Asexual
swap
Mangrove forest
Hind limbs length
celebrated their {n} birthday
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 ⚥
Body mass measured on a scale while the animal stands or sits calmly.
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
◉{N} more on tap
end of fast growth
sexual maturity
kitten
pupa
imago
adolescent
