The false killer whale is a rare hybrid of the false killer whale and the melon-headed whale. This marine mammal combines traits of both parents and lives in warm oceans.
The wolphin differs from the bottlenose dolphin in its larger size and fin shape, and from the false killer whale in its shorter beak. Such hybrids are rare and help study the relatedness of different dolphin species.
Hunts using echolocation.
Legendary longevity: over 100 years. Galapagos tortoises, Greenland sharks, ocean quahogs celebrate with family once every 4 years
homogamy, reproduction always with fertilization, no alternation of generations
Offspring
Worker
Elders
Bro
birth time
normal sexual
Taxons
carnivore
if born as {name}
inhabit and develop in salty sea water
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
age
t
When your next jubilee falls in {name} life years
water is almost always warm, even in winter you can swim, very hot in summer
Human
birth date
no permanent shelter
rest
echolocation
open ocean
Close
was
days
Career from 7 to 15 months. Dwarf hamsters, voles, field crickets celebrate their birthday twice a month
Marine world
young are born live directly in sea water, not hatched from eggs or roe
The basics
How old you would be if you lived as {name}
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.
My weight?
with mother
Non-stop carnival: they only live a few days. Mayflies, rotifers, midges celebrate their birthday more than twice a day
adult
Maturity
primary food sources
marine
Temperate sea
Potential Habitat
About health
in the parent's pouch/mouth in seawater
When your next birthday would fall if you lived as {name}
Piano
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
fresh water
Repro interval
Hunts using echolocation.
results
Mass
sea
protection from predators
Mosquitoes, fruit flies, small crustaceans hustle for up to 7 months and throw a birthday party every week
inhabit and develop in rivers, lakes, ponds, swamps, streams, and puddles
Body size
Colors
Sex
Warm sea
Flukes count
{name} birthday
Upcoming jubilees
Gremllins
mo
live fish
No results found
all seas and oceans
Trophic type
Filters
On the map
all life stages
Female ♀
Body color
Flukes size
Upcoming birthdays
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.
Truly long lives: 40-100 years. Bowhead whales, albatrosses, giant tortoises recall their birthday at most once a year
Lifespan
birth year
Maturity
sq mm
yr
Wanderers
How similar?
Jubilee = every 10th birthday
squids
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
Earliest developmental stage inside an egg or womb.
Business sausages
Young offspring still dependent on parental care.
squids
Lifespan average
What do they eat?
Where do they live?
Marine world
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
Share
pelagic — swim in the open sea, away from the bottom and shore
Duration
Find a pet...
Mature, fully developed individual capable of reproduction.
300 to 350 kilograms, 1.8 – 2.5 meters
fish
This is me
water is cool or warm, cold in winter, comfortable to swim in summer
Actively hunting and capturing live prey.
Gamers
Pets
How are they built?
mm
Theoretical lifespan
ml
Stars
Link copied
My age?
wk
My size?
{name} jubilee
Dorsal fin color
Asexual
swap
cm
Old-timers
Find an animal or breed...
active predation
turns
Rabbits, falcons, red-eared turtles hang out for 6-9 years and party on their birthday four times a year
Rascals
Where do they take shelter?
Head color
celebrated their {n} birthday
Dorsal fin count
When you would have been born if you lived as {name}
live squids
Litter size
Daddies
live birth in the sea
Flukes color
Lifespan maximum
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
Hermaphrodite ⚥
Where are they found?
all seas and oceans
Species lacks any fixed or lasting shelter structure.
embryo
Dorsal fin size
Length
kg
Open ocean and sea habitats supporting pelagic and deep-water species.
in the open sea
Observations
◉{N} more on tap