The northern elephant seal is one of the largest marine mammals. Males have a large trunk-shaped nose that they use during mating fights.
The northern elephant seal differs from other seals in the enormous size of males and its special trunk-like nose. It is important for the ocean because it hunts squid and fish and serves as food for orcas.
homogamy, reproduction always with fertilization, no alternation of generations
Whiskers count
Worker
Hot summer almost without rain
birth time
Submerges underwater to reach prey or food at depth.
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
Warm summer
marine pelagic
live octopuses, squids
How old you would be if you lived as {name}
summer from pleasant to very hot
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
Proboscis color
About health
Warm or hot summer and rains
marine coastal
milk
When your next birthday would fall if you lived as {name}
summer from pleasant to very hot
Truck
Repro interval
results
summer warm and almost no rain
Eyes count
summer warm, winter not very cold
Colors
Sex
Upcoming jubilees
Gremllins
diving
mo
live fish
all seas and oceans
Trophic type
Filters
Fur count
Warm or hot summer
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
rains almost always, very humid
young are born live on land, not hatched from eggs or roe
Age (juvenile)
Age (from birth to death)
Age (embryo)
Wanderers
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
the twilight zone of the sea, 200–1000 meters depth
Blubber count
Lifespan average
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
young after fast growth
Whiskers size
Juvenile stage following larval metamorphosis but not yet adult.
live birth
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
marine
Actively hunting and capturing live prey.
Pets
Nearctic realm
Indomalayan realm
{name} jubilee
cm
Old-timers
Find an animal or breed...
Flippers count
turns
Rascals
cephalopod mollusks
drink mother's milk in childhood
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
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.
Summer almost without rain
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
carnivore
almost no rain in summer, more precipitation in winter
if born as {name}
Blubber temp
age
birth date
swimming
no permanent shelter
rest
Fur color
Close
was
Career from 7 to 15 months. Dwarf hamsters, voles, field crickets celebrate their birthday twice a month
Marine world
marine epipelagic
The basics
My weight?
summer is hot and almost no rain falls
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
Blubber size
teeth
Temperate sea
after transformation until death
Potential Habitat
marine bathypelagic
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
Gestation
deep-sea hunting by diving
islands and part of Australia, many unusual animals and plants
aquatic
land
{name} birthday
Warm or hot summer
Nearctic realm
No results found
North America and Greenland, from tundra to forests
very deep, dark and cold, strange fish live here
Eyes color
On the map
lunge
Pleasant summer
all life stages
Female ♀
nest located directly on the ground surface on land
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
lots of rain, summer from warm to very hot
sq mm
yr
comfortable summer, +20…+25 °C
How similar?
Feeding occurs within an oceanic or saltwater environment.
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?
Neither
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
Hard dental structures used to bite, tear, or scrape food.
Flippers color
Duration
Proboscis count
fish
saline marine habitat
Flippers size
This is me
Warm summer with almost no rain
Always very wet
Gamers
molting
How are they built?
marine
shallow near the shore, water rises and falls, crabs live here
mm
Theoretical lifespan
ml
Stars
Link copied
coastal marine zone — shelf, neritic zone
My age?
wk
My size?
Asexual
swap
Southeast Asia and islands, always hot and humid
active predation
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?
inhabit and develop on land, outside water bodies
celebrated their {n} birthday
When you would have been born if you lived as {name}
live squids
Littoral Zone
Daddies
the dark depths of the sea, below 1000 meters
Lifespan maximum
Hermaphrodite ⚥
Proboscis size
North America and Greenland, from tundra to forests
embryo
Length
kg
Rapid forward strike to seize prey.
Observations
◉{N} more on tap