The Chinese tern is a rare seabird with a black crest on its head. It inhabits the coast of East Asia and hunts fish over water.
The Chinese tern differs from other terns by its black crest and smaller size. It is important for nature as a rare species that indicates the state of marine ecosystems.
Worker
birth time
Submerges underwater to reach prey or food at depth.
Hot winter with almost no precipitation
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
Head crest count
days
Warm summer
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.
adult
Maturity
fish of small size
invertebrates
About health
marine coastal
When your next birthday would fall if you lived as {name}
Repro interval
results
aerial
summer warm, winter not very cold
Colors
Sex
Upcoming jubilees
Gremllins
diving
mo
little precipitation in winter, more in summer
all seas and oceans
Trophic type
all living animals without backbone
Filters
small fish
Palearctic realm
Upcoming birthdays
Breeding structure built or used for laying eggs and raising offspring.
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
Age (juvenile)
Age (from birth to death)
Age (embryo)
most of Europe and Asia, various forests, steppes and tundra
Wanderers
Feeding occurs in open air space above ground or water.
Wings size
Jubilee = every 10th birthday
Warm summer and frequent rains
Earliest developmental stage inside an egg or womb.
Business sausages
zones of mixing fresh and sea water — river deltas, estuaries
Lifespan average
young after fast growth
Juvenile stage following larval metamorphosis but not yet adult.
summer warm, rains frequent
What do they look like?
Maturity
emergence (insects)
end of lifespan
Wings color
How do they live?
fertilization / egg laying
How do they behave?
birth / hatching
metamorphosis / end of larval stage
end of acceleration
Share
Find a pet...
Mature, fully developed individual capable of reproduction.
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
flight
Pets
Indomalayan realm
{name} jubilee
cm
Old-timers
Find an animal or breed...
Wingspan
turns
Rascals
Tail color
hot Africa south of the desert, many savannas and forests
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
°C
Not specified
Where are they found?
all seas and oceans
all rivers and lakes
Low precipitation in winter
estuary and delta
Legendary longevity: over 100 years. Galapagos tortoises, Greenland sharks, ocean quahogs celebrate with family once every 4 years
Offspring
Elders
Bro
Taxons
carnivore
if born as {name}
age
birth date
Palearctic realm
Close
Egg shell color
was
Career from 7 to 15 months. Dwarf hamsters, voles, field crickets celebrate their birthday twice a month
Marine world
Head crest color
The basics
My weight?
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
Beak size
Potential Habitat
Very hot summer
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
Mass
Mosquitoes, fruit flies, small crustaceans hustle for up to 7 months and throw a birthday party every week
winter dry and very warm
Gestation
from 130 grams to 0.5 kilograms, 0.35 – 0.8 meters
summer very hot, above +25…+30 °C
{name} birthday
No results found
On the map
all life stages
Female ♀
Down feathers 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
Maturity
sq mm
yr
Beak color
How similar?
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
Legs color
What if eaten?
Neither
from birth to adulthood
Young offspring still dependent on parental care.
nest
What do they eat?
Where do they live?
Immature individual that has not yet reached reproductive maturity.
Marine world
Plumage color
world of Afrotropics
River estuary into the sea
Freshwater
Duration
saline marine habitat
This is me
most of Europe and Asia, various forests, steppes and tundra
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?
Asexual
swap
freshwater environment — rivers, lakes, ponds, swamps
Southeast Asia and islands, always hot and humid
active predation
coastal
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?
celebrated their {n} birthday
When you would have been born if you lived as {name}
Littoral Zone
Daddies
Lifespan maximum
Capturing or collecting food while airborne.
Hermaphrodite ⚥
embryo
Zucchini
Length
kg
Observations
◉{N} more on tap