meadows, prairies, forb glades on land
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.
Offspring
Worker
Elders
leaves and stems of grasses and other herbaceous vegetation
Tail size
Bro
birth time
Taxons
seeds, berries, fruits
Hot and almost no precipitation
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
hot Africa south of the desert, many savannas and forests
Close
was
days
Career from 7 to 15 months. Dwarf hamsters, voles, field crickets celebrate their birthday twice a month
Warm summer
The basics
herbivory, feed only on plant food
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.
My weight?
Non-stop carnival: they only live a few days. Mayflies, rotifers, midges celebrate their birthday more than twice a day
adult
Maturity
primary food sources
Carry-on luggage
plants
burrow
Potential Habitat
About health
lots of grass, few trees, rains are rare
When your next birthday would fall if you lived as {name}
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
Repro interval
results
land coast flooded by tides — salt marshes, littoral zone
Mass
young shoots and leaves of plants
Mosquitoes, fruit flies, small crustaceans hustle for up to 7 months and throw a birthday party every week
summer warm, winter not very cold
Gestation
Colors
Sex
{name} birthday
Upcoming jubilees
Gremllins
mo
Uses an excavated underground tunnel or chamber for refuge or nesting.
rains are very rare, almost a desert
No results found
alpine meadows and arctic tundra on land
Trophic type
Filters
On the map
summer very hot, dry, lots of grass
Warm or hot summer
all life stages
Female ♀
Cold and almost dry
grass
Upcoming birthdays
world of Afrotropics
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
birth year
Maturity
Desert and dry shrubs
4.8 to 6 kilograms, 0.8 – 1.4 meters
Age (juvenile)
terrestrial habitat, land surface outside water
Age (from birth to death)
sq mm
yr
Age (embryo)
Wanderers
How similar?
Jubilee = every 10th birthday
Male ♂
until the celebration
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
Legs color
What if eaten?
Very dry
Neither
Earliest developmental stage inside an egg or womb.
Business sausages
fruits
Lifespan average
nectar
What do they eat?
dry and cold almost all year round
leaves
Where do they live?
from birth to death
Regeneration
Carapace color
early young
What do they look like?
Maturity
emergence (insects)
world of Afrotropics
end of lifespan
How do they live?
fertilization / egg laying
How do they behave?
birth / hatching
metamorphosis / end of larval stage
end of acceleration
Share
Duration
Find a pet...
Mature, fully developed individual capable of reproduction.
hot, uneven rains, lots of grass and trees
Egg count
This is me
Steppe
Gamers
Pets
How are they built?
mm
Theoretical lifespan
ml
Stars
Link copied
My age?
wk
My size?
terrestrial
Hot steppe
sweet nectar and flower pollen
{name} jubilee
Asexual
swap
cm
Old-timers
Find an animal or breed...
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?
terrestrial grassland and steppe
terrestrial herbaceous
terrestrial intertidal
Head color
celebrated their {n} birthday
hot Africa south of the desert, many savannas and forests
open grassy spaces — steppes, savannas, prairies
When you would have been born if you lived as {name}
Litter size
Daddies
Tropical savanna
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?
very hot and almost no precipitation
Living from 25 to 40 years. Orangutans, bald eagles, African elephants celebrate their birthday twice a year
°C
Not specified
alpine and arctic tundra
whole life
Hermaphrodite ⚥
Egg color
Where are they found?
embryo
herbivore
Length
kg
very hot and dry, rare rains, cacti live
Observations
◉{N} more on tap