Calm, hardy, independent, possesses a strong herding instinct, well adapted to harsh conditions, shows caution and vigilance, low aggression toward humans with proper handling.
Mongolian horse — a small, hardy primitive breed of steppe type. Height at withers 122–138 cm (stallions 130–135 cm, mares 125–132 cm), live weight 240–360 kg (average 270–320 kg). Body length 140–155 cm, chest girth 150–175 cm. Build compact, “square” (format index ≈1.00–1.05), with a short broad head, short thick neck, deep broad body, short straight back, powerful croup and strong limbs. Distinguished by extremely dense winter coat (up to 80–100 mm), ability to accumulate fat on the croup and sides (“fat hump”), very strong rounded hooves. All coat colors are allowed; most common are bay, brown, dun, mouse-gray, chestnut, black, gray; primitive markings (dark dorsal stripe, zebra striping) are characteristic.
Indicates a long-lasting or recurring health condition.
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.
training aptitude
Worker
Elders
Bro
birth time
Long-lasting or recurring health condition persisting over an extended period.
Acute onset within 1–3 days after a storm, healing 7–21 days with treatment, frequent relapses
Taxons
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
Fur length
cough
wet pastures
Close
was
diseases symptoms muscle weakness
days
Career from 7 to 15 months. Dwarf hamsters, voles, field crickets celebrate their birthday twice a month
Head width
The basics
How old you would be if you lived as {name}
chronic obstructive pulmonary disease
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
Confidence
Health
Ears length
Potential Habitat
About health
When your next birthday would fall if you lived as {name}
Piano
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
open grazing in steppe
results
Mass
Tail length
Mosquitoes, fruit flies, small crustaceans hustle for up to 7 months and throw a birthday party every week
temperature for housing
chronic
blepharospasm
Sex
{name} birthday
Upcoming jubilees
Gremllins
mo
No results found
Torso length
Filters
Eyes color
chronic nasal discharge
On the map
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
diseases symptoms lacrimation
birth year
sq mm
yr
Wanderers
severe
Frequently observed or widespread in the species or population.
How similar?
Outcome is favorable when managed or treated appropriately.
Jubilee = every 10th birthday
Male ♂
until the celebration
Torso width
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
Minimum space
What if eaten?
chronic disease
Neither
Earliest developmental stage inside an egg or womb.
Business sausages
Health issue of intermediate seriousness, neither mild nor life-threatening.
Head length
Lifespan average
What do they eat?
Where do they live?
moderate
early young
What do they look like?
Maturity
emergence (insects)
end of lifespan
How do they live?
fertilization / egg laying
How do they behave?
birth / hatching
metamorphosis / end of larval stage
end of acceleration
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Mature, fully developed individual capable of reproduction.
300 to 350 kilograms, 1.8 – 2.5 meters
This is me
Gamers
Pets
How are they built?
mm
Theoretical lifespan
ml
Stars
Link copied
Gradual onset from 5–7 years, progression over months–years
My age?
wk
My size?
corneal ulcer
Involuntary shaking or trembling of the body.
hypp
Serious or life-threatening health condition requiring urgent attention.
{name} jubilee
Asexual
swap
good
cm
Old-timers
Find an animal or breed...
Broad-spectrum antibiotics topically, atropine 1% for cycloplegia, anti-inflammatory drugs, eye protection
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?
stress
celebrated their {n} birthday
hind leg paralysis
Disorder caused by inherited or mutation-based factors.
When you would have been born if you lived as {name}
Litter size
Daddies
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?
common diseases
Living from 25 to 40 years. Orangutans, bald eagles, African elephants celebrate their birthday twice a year
°C
Not specified
Hermaphrodite ⚥
Where are they found?
embryo
genetic diseases
Length
kg
Transition to wet food, bronchodilators, inhaled corticosteroids, improved ventilation
body tremor
Observations
◉{N} more on tap