The southern smooth whale is a large marine mammal without a dorsal fin. It has light callous growths on its head and feeds on plankton in the waters of the Southern Hemisphere.
The southern right whale differs from other whales by the absence of a dorsal fin and light-colored callosities on the head. It is important for the ocean because it feeds on plankton and serves as part of the food chain.
homogamy, reproduction always with fertilization, no alternation of generations
Worker
birth time
Pelagic Ocean
breeding
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
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.
Baleen plates size
small planktonic crustaceans — copepods, krill
Captures food by straining water or substrate through specialized structures.
adult
Maturity
About health
marine coastal
milk
When your next birthday would fall if you lived as {name}
Truck
Repro interval
results
Colors
Sex
Upcoming jubilees
Gremllins
mo
all seas and oceans
Trophic type
Filters
Callosities size
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
copepods
far from shore, deep water, large whales and sharks live here
world of Australasia
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
the twilight zone of the sea, 200–1000 meters depth
Lifespan average
water is almost always cold, there may be ice in winter, not hot in summer
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
the upper illuminated layer of the sea, 0–200 meters
Share
Pectoral flippers color
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
Pectoral flippers count
{name} jubilee
Tail flukes size
cm
zooplankton feeding, animal plankton — small crustaceans and larvae
Old-timers
Find an animal or breed...
turns
Rascals
drink mother's milk in childhood
Abyssal Ocean
copepods
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.
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
normal sexual
Taxons
if born as {name}
inhabit and develop in salty sea water
age
water is almost always warm, even in winter you can swim, very hot in summer
birth date
Head size
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?
marine mesopelagic
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
marine bathypelagic
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.
planktivore
Mass
sea
Mosquitoes, fruit flies, small crustaceans hustle for up to 7 months and throw a birthday party every week
Gestation
Body size
islands and part of Australia, many unusual animals and plants
aquatic
Warm sea
{name} birthday
No results found
very deep, dark and cold, strange fish live here
On the map
Female ♀
all life stages
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
Shelter used specifically for reproduction or nesting.
Maturity
krill
sq mm
yr
How similar?
Tail flukes color
Tail flukes count
Male ♂
until the celebration
baby / chick
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
cyclops and other small copepod crustaceans
Baleen plates color
pelagic — swim in the open sea, away from the bottom and shore
Duration
filter feeding
saline marine habitat
This is me
Gamers
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
coastal marine zone — shelf, neritic zone
My age?
wk
My size?
water filtration through baleen
Asexual
swap
Callosities color
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?
Pectoral flippers size
Head color
celebrated their {n} birthday
When you would have been born if you lived as {name}
Littoral Zone
Daddies
live birth in the sea
the dark depths of the sea, below 1000 meters
Lifespan maximum
krill
Hermaphrodite ⚥
embryo
Length
kg
in the open sea
Observations
◉{N} more on tap