Coregonus fatioi is a freshwater fish from the salmon family. It inhabits only Lake Leman in the Alps and feeds on small aquatic organisms.
The species differs from related whitefish by the number of gill rakers and body shape. It is important for the lake ecosystem as a consumer of plankton and food for predatory fish.
Immature form that undergoes metamorphosis before adulthood.
Worker
birth time
bottom
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
How old you would be if you lived as {name}
suction
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.
Captures food by straining water or substrate through specialized structures.
adult
Maturity
Fins count
About health
When your next birthday would fall if you lived as {name}
Repro interval
results
Colors
Sex
Upcoming jubilees
Gremllins
mo
all seas and oceans
Trophic type
Filters
Palearctic realm
Upcoming birthdays
Truly long lives: 40-100 years. Bowhead whales, albatrosses, giant tortoises recall their birthday at most once a year
Lifespan
lake
Fins size
insect larvae and caterpillars
Age (from birth to death)
Foraging occurs on the floor of aquatic or terrestrial habitats.
most of Europe and Asia, various forests, steppes and tundra
Wanderers
Jubilee = every 10th birthday
Draws prey or water into the mouth by creating negative pressure.
Earliest developmental stage inside an egg or womb.
Business sausages
Lifespan average
Regeneration
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
Share
Find a pet...
Mature, fully developed individual capable of reproduction.
Freshwater
Egg count
Actively hunting and capturing live prey.
Pets
all rivers and lakes
Primary oral structure used to seize, manipulate, or ingest food.
Lots of rain and cool summer
lateral line
{name} jubilee
cm
zooplankton feeding, animal plankton — small crustaceans and larvae
Old-timers
Find an animal or breed...
mouth
turns
Rascals
Flooded grasslands
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
°C
Not specified
Actively searching habitats to locate food items.
Egg color
Where are they found?
all rivers and lakes
lots of rain, cool summer, snow in winter
Locomotion through water employed while searching for or capturing prey.
Legendary longevity: over 100 years. Galapagos tortoises, Greenland sharks, ocean quahogs celebrate with family once every 4 years
Offspring
Elders
Bro
Taxons
carnivore
if born as {name}
age
birth date
Head size
swimming
Palearctic realm
Close
water column
plankton
was
Career from 7 to 15 months. Dwarf hamsters, voles, field crickets celebrate their birthday twice a month
The basics
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
gills
Potential Habitat
suction
d
In husbandry
Feeds while suspended in open water between surface and bottom.
On the go from 1.3 to 3.5 years. Forest mice, anoles, rainbow fish party on their birthday once a month
Feeding occurs in water bodies such as rivers, lakes, or oceans.
Mass
Mosquitoes, fruit flies, small crustaceans hustle for up to 7 months and throw a birthday party every week
from 130 grams to 0.5 kilograms, 0.35 – 0.8 meters
Body size
aquatic
vision
{name} birthday
No results found
On the map
lunge
small crustaceans
all life stages
Female ♀
Body color
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
Maturity
Gills size
sq mm
yr
How similar?
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
Mouthpart modified to create suction for ingesting food or anchoring.
zoo-plankton
What do they eat?
insect larvae
Where do they live?
Marine world
early young
water often floods the land, lots of grass
Freshwater
Temperate mixed forest
Duration
filter feeding
This is me
most of Europe and Asia, various forests, steppes and tundra
freshwater
Gamers
How are they built?
mm
Theoretical lifespan
ml
Stars
Link copied
My age?
wk
My size?
Asexual
swap
freshwater environment — rivers, lakes, ponds, swamps
active predation
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?
Sensory system detecting water movements to locate prey.
celebrated their {n} birthday
When you would have been born if you lived as {name}
Daddies
small crabs, amphipods and other crustaceans
Lifespan maximum
foraging
Hermaphrodite ⚥
Primarily detects and locates food using eyesight.
embryo
Zucchini
summer warm, many oaks, birches, maples
Length
kg
Rapid forward strike to seize prey.
Observations
◉{N} more on tap