Lönnberg's beardfish is a small bottom-dwelling fish living in the cold waters around Antarctica. Under its lower jaw grows a long barbel that helps find and attract prey.
Lönnberg's beardfish differs from related species by its special long barbel on the chin. It is important for the Antarctic ecosystem as a predator that regulates the number of small invertebrates on the bottom.
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
Bro
birth time
Pelagic Ocean
ambush
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
bioluminescence
g
age
t
When your next jubilee falls in {name} life years
Predator remains still and concealed before launching a sudden attack.
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
Marine world
marine pelagic
The basics
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.
My weight?
Non-stop carnival: they only live a few days. Mayflies, rotifers, midges celebrate their birthday more than twice a day
adult
Maturity
fish of small size
primary food sources
polychaetes
24 to 38 grams, 10 – 25 centimeters
Potential Habitat
About health
Pectoral fins count
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
Polar sea
Mass
annelid polychaetes of marine habitats
Mosquitoes, fruit flies, small crustaceans hustle for up to 7 months and throw a birthday party every week
Eyes count
Body size
ambush hunting behavior using an antenna-lure
Colors
Sex
{name} birthday
Upcoming jubilees
Gremllins
mo
No results found
all seas and oceans
Trophic type
Filters
Eyes color
small fish
On the map
small crustaceans
all life stages
Female ♀
the coldest and iciest edge, almost always snow and ice
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
birth year
Maturity
Age (juvenile)
Age (from birth to death)
sq mm
yr
Age (embryo)
Wanderers
Age (larva)
Attracts prey using bait, mimicry, or luminescent lure.
How similar?
far from shore, deep water, large whales and sharks live here
Barbel 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?
luring
Neither
Earliest developmental stage inside an egg or womb.
Business sausages
from birth to adulthood
world of Antarctica
Lifespan average
What do they eat?
Where do they live?
young after fast growth
Immature individual that has not yet reached reproductive maturity.
from birth to death
Marine world
Juvenile stage following larval metamorphosis but not yet adult.
early young
What do they look like?
Maturity
emergence (insects)
end of lifespan
Freshwater
How do they live?
fertilization / egg laying
How do they behave?
birth / hatching
metamorphosis / end of larval stage
Barbel color
end of acceleration
Share
Duration
Find a pet...
Mature, fully developed individual capable of reproduction.
Pectoral fins color
saline marine habitat
This is me
Actively hunting and capturing live prey.
Gamers
world of Antarctica
Pets
How are they built?
marine
mm
Theoretical lifespan
ml
Stars
Link copied
the coldest and iciest edge, almost always snow and ice
My age?
wk
My size?
sea almost always covered with thick ice, very cold all year round
lateral line
{name} jubilee
Eyes size
Asexual
swap
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?
Sensory system detecting water movements to locate prey.
celebrated their {n} birthday
When you would have been born if you lived as {name}
Litter size
Daddies
small crabs, amphipods and other crustaceans
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 ⚥
pelagic zone — open water far from shore and seabed
Tomato
Where are they found?
all seas and oceans
Pectoral fins size
Species lacks any fixed or lasting shelter structure.
embryo
all rivers and lakes
Length
kg
Observations
◉{N} more on tap