Irrawaddy dolphin is a small marine mammal with a rounded head without a beak. It lives both in marine coastal waters and in rivers of Southeast Asia.
Irrawaddy dolphin differs from other dolphins by the absence of a beak and a low rounded dorsal fin. It serves as an important indicator of the health of river and coastal ecosystems.
Hunts using echolocation.
Immature form that undergoes metamorphosis before adulthood.
Worker
birth time
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
echolocation
days
live octopuses, squids
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.
with mother
adult
Maturity
cephalopods
crabs
live marine and freshwater shrimps
About health
marine coastal
milk
in the parent's pouch/mouth in seawater
Pectoral fins count
When your next birthday would fall if you lived as {name}
Sofa
Repro interval
Hunts using echolocation.
results
protection from predators
Southeast Asia and islands, always hot and humid
Colors
Sex
Upcoming jubilees
Gremllins
mo
live fish
all seas and oceans
Trophic type
Filters
Upcoming birthdays
Truly long lives: 40-100 years. Bowhead whales, albatrosses, giant tortoises recall their birthday at most once a year
Lifespan
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
Jubilee = every 10th birthday
marine coastal demersal
Earliest developmental stage inside an egg or womb.
Business sausages
Lifespan average
the mother carries the baby in a pouch or mouth in sea water
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
Share
swampy freshwater biotopes — peat bogs, marshes, river mangroves
Find a pet...
Mature, fully developed individual capable of reproduction.
Freshwater
Actively hunting and capturing live prey.
where the river flows into the sea, slightly salty water, lots of fish and birds
Pets
all rivers and lakes
Indomalayan realm
Indomalayan realm
{name} jubilee
cm
Old-timers
Find an animal or breed...
turns
Rascals
drink mother's milk in childhood
Dorsal fin count
Litter size
live crabs, shrimps, lobsters
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
Where are they found?
all seas and oceans
Pectoral fins size
Species lacks any fixed or lasting shelter structure.
Dorsal fin size
all rivers and lakes
Legendary longevity: over 100 years. Galapagos tortoises, Greenland sharks, ocean quahogs celebrate with family once every 4 years
Offspring
Blowhole count
Elders
Bro
freshwater marsh and wetlands
Taxons
carnivore
rivers and streams
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
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
The basics
My weight?
demersal biotope of coastal marine waters
Non-stop carnival: they only live a few days. Mayflies, rotifers, midges celebrate their birthday more than twice a day
primary food sources
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
fresh water
Mass
sea
Mosquitoes, fruit flies, small crustaceans hustle for up to 7 months and throw a birthday party every week
Gestation
inhabit and develop in rivers, lakes, ponds, swamps, streams, and puddles
Warm sea
{name} birthday
No results found
On the map
all life stages
Female ♀
Body color
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.
birth year
Maturity
sq mm
yr
How similar?
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
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
shrimps
River estuary into the sea
Freshwater
Duration
fish
Pectoral fins color
saline marine habitat
This is me
freshwater
Always very wet
Gamers
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?
Dorsal fin color
Asexual
swap
freshwater environment — rivers, lakes, ponds, swamps
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?
Head color
celebrated their {n} birthday
When you would have been born if you lived as {name}
Littoral Zone
flowing fresh waters — rivers, streams, mountain torrents
Daddies
Lifespan maximum
Hermaphrodite ⚥
shrimp
embryo
Length
kg
Observations
◉{N} more on tap