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mottled-bichir-150523
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mottled bichir
Polypterus weeksii
The spotted multimopter is an ancient freshwater fish from Central Africa. It has sturdy scales, several dorsal fins, and special lungs that allow it to breathe air.
The variegated polypterus differs from modern fish in its ancient body structure, ganoid scales, and ability to breathe air. It helps scientists understand how vertebrates colonized land millions of years ago.
ambush hunting using lateral line
trophic:carnivore
feeding_sense:lateral_line
#0e0d08
9921.94100909832
14174.20144156903
200.0
350.0
80.0
350.0
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
Tropical moist forest
Worker
Elders
Bro
Were {name} like {animal}, then:
birth time
ambush
Taxons
carnivore
External gills count
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
Predator remains still and concealed before launching a sudden attack.
Human
birth date
hot Africa south of the desert, many savannas and forests
no permanent shelter
Close
very hot and very humid all year round, rain almost every day
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
ambush hunting using lateral line
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
fish of small size
primary food sources
teeth
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
Mass
Mosquitoes, fruit flies, small crustaceans hustle for up to 7 months and throw a birthday party every week
Colors
Sex
{name} birthday
Upcoming jubilees
live annelid worms
Gremllins
mo
aquatic insects
No results found
Trophic type
Dorsal finlets color
Filters
small fish
On the map
lunge
all life stages
Female ♀
Body color
always hot and humid, huge trees and vines
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
Dorsal finlets size
Age (from birth to death)
sq mm
yr
External gills size
Wanderers
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
Lifespan average
What do they eat?
Where do they live?
Rapidly swallows prey or food items whole without chewing.
Regeneration
early young
Hard dental structures used to bite, tear, or scrape food.
What do they look like?
Maturity
emergence (insects)
world of Afrotropics
end of lifespan
Freshwater
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.
Freshwater
gulping
Always hot and wet
Egg count
This is me
freshwater
Actively hunting and capturing live prey.
Gamers
65 to 130 grams, 25 – 60 centimeters
Pets
How are they built?
all rivers and lakes
External gills color
Primary oral structure used to seize, manipulate, or ingest food.
mm
Theoretical lifespan
ml
Stars
Link copied
My age?
wk
My size?
whole swallow
lateral line
Scales color
{name} jubilee
Asexual
swap
freshwater environment — rivers, lakes, ponds, swamps
cm
Old-timers
Find an animal or breed...
active predation
mouth
Who among us will transform as if by magic and become like {animal}?
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.
olfaction
celebrated their {n} birthday
hot Africa south of the desert, many savannas and forests
Lungs count
When you would have been born if you lived as {name}
Litter size
Dorsal finlets count
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
river
°C
Not specified
Hermaphrodite ⚥
Egg color
Where are they found?
Pectoral fins size
Species lacks any fixed or lasting shelter structure.
embryo
Carrot
all rivers and lakes
Length
kg
Rapid forward strike to seize prey.
insects living in water or near water — mayflies, caddisflies, stoneflies
Observations
◉{N} more on tap
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