The Alabama cavefish is a very rare blind white fish. It lives only in the underground waters of one cave in the state of Alabama in the USA and is fully adapted to constant darkness.
The Alabama cavefish differs from related species by the complete absence of eyes and the white color of the body. It is important for nature as a rare species that helps scientists understand how cave ecosystems function. Unfortunately, it is threatened with complete extinction.
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
Head sensors size
Bro
birth time
Taxons
carnivore
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
summer mild, +15…+20 °C
t
When your next jubilee falls in {name} life years
Human
birth date
no permanent shelter
Close
was
days
Career from 7 to 15 months. Dwarf hamsters, voles, field crickets celebrate their birthday twice a month
worms
The basics
How old you would be if you lived as {name}
crustaceans
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?
small planktonic crustaceans — copepods, krill
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
Potential Habitat
About health
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
Mass
Mosquitoes, fruit flies, small crustaceans hustle for up to 7 months and throw a birthday party every week
Eyes count
Colors
Cool summer
Sex
{name} birthday
Upcoming jubilees
live annelid worms
Gremllins
mo
Nearctic realm
No results found
North America and Greenland, from tundra to forests
Trophic type
Filters
On the map
lunge
all life stages
Female ♀
Body color
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
Lateral line size
birth year
Maturity
Age (juvenile)
insect larvae and caterpillars
Age (from birth to death)
sq mm
yr
Age (embryo)
Wanderers
Age (larva)
How similar?
Egg size
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
What if eaten?
Neither
Earliest developmental stage inside an egg or womb.
Business sausages
from birth to adulthood
Lifespan average
What do they eat?
insect larvae
Where do they live?
young after fast growth
Immature individual that has not yet reached reproductive maturity.
from birth to death
Juvenile stage following larval metamorphosis but not yet adult.
early young
What do they look like?
Maturity
underground
emergence (insects)
end of lifespan
Freshwater
How do they live?
fertilization / egg laying
How do they behave?
birth / hatching
metamorphosis / end of larval stage
Temperate mixed forest
end of acceleration
Share
Duration
Find a pet...
Mature, fully developed individual capable of reproduction.
Freshwater
Egg count
This is me
freshwater
Actively hunting and capturing live prey.
Gamers
Pets
How are they built?
all rivers and lakes
Nearctic realm
mm
Theoretical lifespan
ml
Stars
Link copied
My age?
wk
My size?
{name} jubilee
Asexual
swap
freshwater environment — rivers, lakes, ponds, swamps
cm
Old-timers
Find an animal or breed...
active predation
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?
celebrated their {n} birthday
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?
Living from 25 to 40 years. Orangutans, bald eagles, African elephants celebrate their birthday twice a year
°C
Not specified
Hermaphrodite ⚥
Egg color
Grape
Where are they found?
8 to 11 grams, 1.5 – 8 centimeters
North America and Greenland, from tundra to forests
Species lacks any fixed or lasting shelter structure.
embryo
all rivers and lakes
summer warm, many oaks, birches, maples
Length
kg
Rapid forward strike to seize prey.
Observations
◉{N} more on tap