The hare (European hare) is a large animal with long ears, strong hind legs, and reddish-brown fur. It runs quickly across fields and meadows to escape enemies.
The brown hare is larger than the mountain hare and does not change its fur color to white in winter. It serves as important food for foxes, wolves, eagles, and helps spread plant seeds across fields.
homogamy, reproduction always with fertilization, no alternation of generations
pecking
Worker
birth time
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
t
When your next jubilee falls in {name} life years
Human
days
Warm summer
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.
adult
Maturity
Melon
plants
About health
milk
When your next birthday would fall if you lived as {name}
Repro interval
results
protection from predators
Eyes count
summer warm, winter not very cold
Colors
Sex
Upcoming jubilees
Gremllins
mo
Trophic type
Filters
grain
Captures or processes food by biting or nipping with the mouth.
Palearctic realm
young shoots and sprouts
grass
Upcoming birthdays
eggs, roe or offspring develop in a nest built on the ground or close to it
Truly long lives: 40-100 years. Bowhead whales, albatrosses, giant tortoises recall their birthday at most once a year
Lifespan
leaf
Height
nest on the ground
young shoots
rains almost always, very humid
young are born live on land, not hatched from eggs or roe
bark
Age (juvenile)
Age (from birth to death)
Age (embryo)
most of Europe and Asia, various forests, steppes and tundra
Wanderers
Jubilee = every 10th birthday
Ears size
Earliest developmental stage inside an egg or womb.
Business sausages
Lifespan average
in a terrestrial nest
live birth
What do they look like?
Maturity
emergence (insects)
end of lifespan
crepuscular
How do they live?
fertilization / egg laying
How do they behave?
birth / hatching
metamorphosis / end of larval stage
end of acceleration
Share
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Mature, fully developed individual capable of reproduction.
Pets
Repeatedly strikes or probes substrate with beak to obtain food.
biting
terrestrial shrubland
Lots of rain and cool summer
Feeding occurs primarily on land or in vegetation.
{name} jubilee
terrestrial shrub habitats — maquis, chaparral, bush
cm
Summer from cool to warm
Old-timers
Find an animal or breed...
turns
Rascals
terrestrial forest
terrestrial grassland and steppe
grains
Flooded grasslands
drink mother's milk in childhood
grains of cereals — wheat, rice, millet, maize
Ears count
Litter size
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?
Living from 25 to 40 years. Orangutans, bald eagles, African elephants celebrate their birthday twice a year
grazing
°C
Not specified
Actively searching habitats to locate food items.
Where are they found?
Species lacks any fixed or lasting shelter structure.
from 0.8 to 1.2 kilograms, 0.6 – 1.2 meters
steppe
Hind legs size
herbivore
lots of rain, cool summer, snow in winter
Feeds by cropping or nibbling low-growing vegetation or algae.
Legendary longevity: over 100 years. Galapagos tortoises, Greenland sharks, ocean quahogs celebrate with family once every 4 years
Offspring
Elders
leaves and stems of grasses and other herbaceous vegetation
Bro
normal sexual
Taxons
if born as {name}
Foraging takes place among trees and woody vegetation.
age
birth date
no permanent shelter
Palearctic realm
tearing
rest
Fur color
Close
was
Career from 7 to 15 months. Dwarf hamsters, voles, field crickets celebrate their birthday twice a month
nocturnal
The basics
herbivory, feed only on plant food
bark and bast of trees and shrubs
climbing
My weight?
Non-stop carnival: they only live a few days. Mayflies, rotifers, midges celebrate their birthday more than twice a day
primary food sources
teeth
bark
after transformation until death
Potential Habitat
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
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
terrestrial
Plants
Gestation
Rips or shreds food using teeth, beak or claws.
land
{name} birthday
Food is gathered directly from leaf surfaces.
grass
No results found
Eyes color
On the map
young shoots, sprouts, green plant shoots
Pleasant summer
all life stages
Female ♀
gnaws plants
nest located directly on the ground surface on land
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.
birth year
lots of grass, few trees, rains occur
tree bark
Maturity
terrestrial habitat, land surface outside water
sq mm
yr
comfortable summer, +20…+25 °C
How similar?
Male ♂
until the celebration
baby / chick
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
legume plants
What if eaten?
Neither
Moving up vertical surfaces like trunks or rocks to reach food.
Young offspring still dependent on parental care.
What do they eat?
Where do they live?
Ears color
Hard dental structures used to bite, tear, or scrape food.
forests on land — tropical, temperate, boreal
water often floods the land, lots of grass
Temperate mixed forest
Duration
This is me
most of Europe and Asia, various forests, steppes and tundra
Foraging activity occurs primarily during nighttime hours.
Always very wet
Gamers
How are they built?
Temperate steppe
mm
Theoretical lifespan
ml
Stars
Link copied
My age?
wk
My size?
terrestrial
Hind legs count
Taiga
Asexual
swap
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
inhabit and develop on land, outside water bodies
celebrated their {n} birthday
open grassy spaces — steppes, savannas, prairies
When you would have been born if you lived as {name}
Daddies
Lifespan maximum
summer not hot, from +15 to +25 °C
foraging
Hermaphrodite ⚥
embryo
summer warm, many oaks, birches, maples
Length
kg
lots of rain, warm and pleasant summer
arboreal
Observations
◉{N} more on tap