The white-bellied storm petrel is a small seabird that spends almost its entire life in the open ocean. It has a dark back, white belly, and long legs with which it touches the water during flight.
The white-bellied storm petrel differs from related species by its bright white belly and longer legs. It is important for nature because it transfers nutrients from the ocean to the islands and serves as food for large predatory birds.
Worker
birth time
Pelagic Ocean
very cold, short summer, lots of moss
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
Polar tundra
t
When your next jubilee falls in {name} life years
Human
Legs count
days
Warm summer
marine pelagic
live octopuses, squids
How old you would be if you lived as {name}
summer from pleasant to very hot
Antarctic and other krill
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.
adult
Maturity
cephalopods
fish of small size
South and Central America, hot and humid, huge forests
About health
Warm or hot summer and rains
marine demersal
When your next birthday would fall if you lived as {name}
plankton
Repro interval
results
summer warm, winter not very cold
Colors
Sex
Upcoming jubilees
Gremllins
mo
Uses an excavated underground tunnel or chamber for refuge or nesting.
rains are very rare, almost a desert
all seas and oceans
Trophic type
Filters
running
small fish
Warm or hot summer
the coldest and iciest edge, almost always snow and ice
Upcoming birthdays
Truly long lives: 40-100 years. Bowhead whales, albatrosses, giant tortoises recall their birthday at most once a year
Lifespan
rains almost always, very humid
Age (from birth to death)
Wanderers
Wings size
far from shore, deep water, large whales and sharks live here
world of Australasia
Jubilee = every 10th birthday
Earliest developmental stage inside an egg or womb.
Business sausages
Lifespan average
water is almost always cold, there may be ice in winter, not hot in summer
young after fast growth
Juvenile stage following larval metamorphosis but not yet adult.
What do they look like?
Maturity
emergence (insects)
end of lifespan
Wings color
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.
Cold sea
very cold, lots of snow and ice
water is cool or warm, cold in winter, comfortable to swim in summer
world of Antarctica
Pets
Belly color
Legs size
{name} jubilee
cm
Old-timers
Find an animal or breed...
Wingspan
turns
islands and part of Australia, many unusual animals and plants
Rascals
hot Africa south of the desert, many savannas and forests
Abyssal Ocean
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
the sea is covered with ice most of the year or has many ice floes, very cold in winter
pelagic zone — open water far from shore and seabed
Where are they found?
all seas and oceans
Legendary longevity: over 100 years. Galapagos tortoises, Greenland sharks, ocean quahogs celebrate with family once every 4 years
Offspring
Elders
Bro
Very cold
Taxons
carnivore
if born as {name}
cold, short summer, almost no trees
Wings count
age
birth date
planktivory, eat small creatures that float in the water and cannot swim against the current
open ocean
Close
Egg shell color
was
Career from 7 to 15 months. Dwarf hamsters, voles, field crickets celebrate their birthday twice a month
Marine world
The basics
Neotropical realm
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
pattering — running on water with wings spread
burrow
Temperate sea
Beak size
Potential Habitat
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
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
islands and part of Australia, many unusual animals and plants
aquatic
{name} birthday
Always hot
No results found
very deep, dark and cold, strange fish live here
islands
On the map
all life stages
Female ♀
Down feathers 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.
Beak count
birth year
Maturity
lots of rain, summer from warm to very hot
sq mm
yr
Beak color
How similar?
Male ♂
until the celebration
baby / chick
Tundra
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
from birth to adulthood
Young offspring still dependent on parental care.
world of Antarctica
What do they eat?
Where do they live?
Immature individual that has not yet reached reproductive maturity.
Marine world
Plumage color
world of Afrotropics
Duration
saline marine habitat
This is me
from 11 to 16 grams, 1.5 – 12 centimeters
Always very wet
Gamers
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?
Asexual
swap
Subpolar sea
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?
celebrated their {n} birthday
When you would have been born if you lived as {name}
very hot all year round, frequent rains, but sometimes dry
Daddies
Lifespan maximum
world of Australasia
krill
Hermaphrodite ⚥
Strawberry
embryo
Length
kg
near-bottom water layer of the open sea
Observations
◉{N} more on tap