The grey seal is a large marine mammal with a long muzzle. It lives in the cold waters of the North Atlantic, swims well, and hunts underwater.
The grey seal differs from other seals with its long muzzle and spotted fur. It is important for nature because it regulates fish populations and serves as prey for large predators.
homogamy, reproduction always with fertilization, no alternation of generations
Worker
birth time
Pelagic Ocean
breeding
humid
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
very cold, short summer, almost no trees, lots of moss
days
Warm summer
How old you would be if you lived as {name}
summer from pleasant to very hot
crustaceans
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.
small planktonic crustaceans — copepods, krill
adult
Maturity
About health
marine coastal
Warm or hot summer and rains
milk
Warm Sea
When your next birthday would fall if you lived as {name}
tropical forest
Sofa
Repro interval
results
summer warm, winter not very cold
Colors
Sex
Upcoming jubilees
Gremllins
mo
warm temperate humid and hot
live fish
rains are very rare, almost a desert
all seas and oceans
Trophic type
Filters
Warm or hot summer
Palearctic realm
always hot and humid, huge trees and vines
Upcoming birthdays
eggs, roe or offspring develop in a nest built on the ground or close to it
Truly long lives: 40-100 years. Bowhead whales, albatrosses, giant tortoises recall their birthday at most once a year
Lifespan
Height
nest on the ground
Desert and dry shrubs
young are born live on land, not hatched from eggs or roe
rains almost always, very humid
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
warm temperate
Jubilee = every 10th birthday
marine coastal demersal
Tundra
Earliest developmental stage inside an egg or womb.
marine coastal benthic
Business sausages
Warm sea
Lifespan average
Temperate Sea
water is almost always cold, there may be ice in winter, not hot in summer
nest located directly on the ground surface on land, only the mother provides parental care for the offspring
in a terrestrial nest
Cold Sea
young after fast growth
Whiskers size
Juvenile stage following larval metamorphosis but not yet adult.
live birth
live octopuses
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
benthic biotope of coastal marine waters
Share
arid steppe hot
Find a pet...
Mature, fully developed individual capable of reproduction.
Cold sea
Nose color
hot, uneven rains, lots of grass and trees
very cold, lots of snow and ice
water is cool or warm, cold in winter, comfortable to swim in summer
Actively hunting and capturing live prey.
where the river flows into the sea, slightly salty water, lots of fish and birds
Pets
Nearctic realm
deciduous forest
Mangrove thickets
{name} jubilee
cm
Old-timers
Find an animal or breed...
Flippers count
turns
Rascals
warm swampy sea shores, trees on roots
Flooded grasslands
drink mother's milk in childhood
Litter size
Tropical savanna
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
temperate forest
How to care for them?
desert
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
hunting in water
Where are they found?
all seas and oceans
Species lacks any fixed or lasting shelter structure.
steppe
desert scrub
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
Tropical moist forest
Elders
Bro
Very cold
water is almost always warm, even in winter you can swim, very hot in summer
normal sexual
Taxons
Temperate sea
carnivore
if born as {name}
water cool or warm, cold in winter, swimmable in summer
age
birth date
swimming
no permanent shelter
Palearctic realm
rest
Fur color
Close
was
Career from 7 to 15 months. Dwarf hamsters, voles, field crickets celebrate their birthday twice a month
Marine world
The basics
My weight?
demersal biotope of coastal marine waters
octopuses
Non-stop carnival: they only live a few days. Mayflies, rotifers, midges celebrate their birthday more than twice a day
primary food sources
arid steppe
Temperate sea
after transformation until death
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
cold winter, lots of coniferous trees: spruce, pine
Mosquitoes, fruit flies, small crustaceans hustle for up to 7 months and throw a birthday party every week
Gestation
aquatic
land
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
polar
On the map
Pleasant summer
crustaceans
all life stages
Female ♀
nest located directly on the ground surface on land
150 to 300 kilograms, 1.6 – 4 meters
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.
warm temperate humid
birth year
lots of grass, few trees, rains occur
Shelter used specifically for reproduction or nesting.
Maturity
lots of rain, summer from warm to very hot
sq mm
yr
comfortable summer, +20…+25 °C
How similar?
water is almost always cold, there may be ice in winter, not hot in summer
squids
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?
octopuses
Very dry
Neither
flooded grassland
from birth to adulthood
Young offspring still dependent on parental care.
squids
caring mother
What do they eat?
Where do they live?
Immature individual that has not yet reached reproductive maturity.
Marine world
water often floods the land, lots of grass
boreal forest
River estuary into the sea
savanna
Temperate mixed forest
Nose size
Very hot and dry
Duration
fish
saline marine habitat
This is me
most of Europe and Asia, various forests, steppes and tundra
Always very wet
Gamers
molting
water almost always warm, swimmable even in winter, very hot in summer
Teeth count
How are they built?
marine
shallow near the shore, water rises and falls, crabs live here
Temperate steppe
mm
Theoretical lifespan
arid
ml
Stars
Link copied
coastal marine zone — shelf, neritic zone
My age?
wk
My size?
very hot during the day, cold at night, almost no rain
Taiga
Asexual
water almost always cold, ice possible in winter, summers not hot
swap
Subpolar sea
active predation
Mangrove forest
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?
Denotes a grassland or steppe habitat preference.
Warm summer and lots of rain
inhabit and develop on land, outside water bodies
rainforest
celebrated their {n} birthday
When you would have been born if you lived as {name}
live squids
Littoral Zone
Daddies
Lifespan maximum
temperate rainforest
Hermaphrodite ⚥
taiga
Cold sea
North America and Greenland, from tundra to forests
tropical rainforest
embryo
warm swampy shores with trees on roots, crabs live there
summer warm, many oaks, birches, maples
Length
kg
very hot and dry, rare rains, cacti live
lots of rain, warm and pleasant summer
Observations
◉{N} more on tap