The pygmy killer whale is one of the smallest whales in the world. Its body length reaches 7–10 meters, and its weight is up to 10 tons.
The lesser mackerel differs from other mackerels in its small size, pointed snout, and white stripe on the pectoral fins. It is important for marine nature because it eats many small animals and serves as prey for orcas.
homogamy, reproduction always with fertilization, no alternation of generations
Immature form that undergoes metamorphosis before adulthood.
Worker
sea almost always under thick ice, very cold
birth time
Pelagic Ocean
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
marine pelagic
live octopuses, squids
How old you would be if you lived as {name}
crustaceans
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.
with mother
Baleen plates size
small planktonic crustaceans — copepods, krill
Captures food by straining water or substrate through specialized structures.
adult
Maturity
cephalopods
fish of small size
About health
marine coastal
milk
in the parent's pouch/mouth in seawater
When your next birthday would fall if you lived as {name}
Truck
Repro interval
results
Polar sea
protection from predators
Colors
Sex
Upcoming jubilees
Gremllins
mo
live fish
all seas and oceans
Trophic type
Filters
small fish
Upcoming birthdays
Truly long lives: 40-100 years. Bowhead whales, albatrosses, giant tortoises recall their birthday at most once a year
Lifespan
Age (juvenile)
Age (from birth to death)
Age (embryo)
most of Europe and Asia, various forests, steppes and tundra
Wanderers
far from shore, deep water, large whales and sharks live here
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
Temperate Sea
water is almost always cold, there may be ice in winter, not hot in summer
Cold Sea
Body temp
Regeneration
the mother carries the baby in a pouch or mouth in sea water
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
fish
end of acceleration
the upper illuminated layer of the sea, 0–200 meters
Share
Find a pet...
Mature, fully developed individual capable of reproduction.
Cold sea
water is cool or warm, cold in winter, comfortable to swim in summer
Pets
sea almost always under thick ice, very cold
{name} jubilee
cm
zooplankton feeding, animal plankton — small crustaceans and larvae
Old-timers
Find an animal or breed...
Flippers count
turns
Rascals
drink mother's milk in childhood
Dorsal fin count
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
more than 0.35 tons, from 2.5 meters
°C
Not specified
pelagic zone — open water far from shore and seabed
Where are they found?
all seas and oceans
Species lacks any fixed or lasting shelter structure.
Dorsal fin size
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
Blowhole count
Elders
Bro
normal sexual
Taxons
Temperate sea
carnivore
if born as {name}
inhabit and develop in salty sea water
water cool or warm, cold in winter, swimmable in summer
age
birth date
bristles
Palearctic realm
swimming
no permanent shelter
rest
Close
was
Career from 7 to 15 months. Dwarf hamsters, voles, field crickets celebrate their birthday twice a month
Marine world
marine epipelagic
young are born live directly in sea water, not hatched from eggs or roe
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
Temperate sea
after transformation until death
Potential Habitat
suction
filter
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
sea
Mosquitoes, fruit flies, small crustaceans hustle for up to 7 months and throw a birthday party every week
Gestation
Body size
aquatic
water is cool or warm, cold in winter, you can swim in summer
{name} birthday
Nearctic realm
No results found
North America and Greenland, from tundra to forests
On the map
Female ♀
all life stages
Body color
Polar sea
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
krill
sq mm
yr
How similar?
water is almost always cold, there may be ice in winter, not hot in summer
Male ♂
until the celebration
baby / chick
brooding in a pouch or mouth
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
from birth to adulthood
zoo-plankton
Young offspring still dependent on parental care.
What do they eat?
Where do they live?
Immature individual that has not yet reached reproductive maturity.
Marine world
early young
Flippers color
Baleen plates color
pelagic — swim in the open sea, away from the bottom and shore
Duration
filter feeding
saline marine habitat
Flippers size
This is me
Gamers
small fish
How are they built?
marine
shallow near the shore, water rises and falls, crabs live here
mm
Theoretical lifespan
Baleen plates count
ml
Stars
Link copied
Blowhole size
coastal marine zone — shelf, neritic zone
My age?
wk
My size?
sea almost always covered with thick ice, very cold all year round
water filtration through baleen
Dorsal fin color
Asexual
water almost always cold, ice possible in winter, summers not hot
swap
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}
Littoral Zone
Daddies
live birth in the sea
Lifespan maximum
krill
body
Polar Sea
Hermaphrodite ⚥
Cold sea
embryo
Length
kg
in the open sea
Observations
◉{N} more on tap