The bull shark is a large predatory fish with a powerful body and a blunt snout. It is capable of living both in the salty water of seas and in the fresh water of rivers, sometimes swimming very far from the ocean.
The bull shark differs from other sharks by its ability to live in fresh water and its very strong jaws. It is important for nature because it helps control the population of many animal species in marine and river ecosystems.
Immature form that undergoes metamorphosis before adulthood.
Worker
Dermal denticles count
birth time
bottom
pursuit
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
hot Africa south of the desert, many savannas and forests
days
South and Central America, hot and humid, huge forests
coral and rocky reef
How old you would be if you lived as {name}
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
South and Central America, hot and humid, huge forests
invertebrates
About health
marine coastal
When your next birthday would fall if you lived as {name}
Piano
Snout color
Repro interval
results
Southeast Asia and islands, always hot and humid
Colors
Sex
Upcoming jubilees
Gremllins
mo
live fish
all seas and oceans
Trophic type
all living animals without backbone
Filters
dead mice, hares, deer
Captures or processes food by biting or nipping with the mouth.
Upcoming birthdays
standing fresh waters — lakes, ponds, oxbow lakes
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)
Foraging occurs on the floor of aquatic or terrestrial habitats.
Age (embryo)
most of Europe and Asia, various forests, steppes and tundra
Wanderers
world of Australasia
Jubilee = every 10th birthday
marine coastal demersal
Earliest developmental stage inside an egg or womb.
beasts
Business sausages
reptiles
Lifespan average
Regeneration
beasts
What do they look like?
Maturity
emergence (insects)
end of lifespan
birds
How do they live?
fertilization / egg laying
How do they behave?
birth / hatching
metamorphosis / end of larval stage
fish
end of acceleration
Share
Find a pet...
Mature, fully developed individual capable of reproduction.
300 to 350 kilograms, 1.8 – 2.5 meters
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
Nearctic realm
Indomalayan realm
biting
Feeding occurs primarily on land or in vegetation.
{name} jubilee
Eyes size
cm
Old-timers
Find an animal or breed...
turns
Rascals
hot Africa south of the desert, many savannas and forests
Teeth size
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
Dorsal fin size
all rivers and lakes
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
lakes and ponds
Taxons
carnivore
if born as {name}
biotope of coral and rocky reefs
Actively chases and captures mobile prey in open space.
age
water is almost always warm, even in winter you can swim, very hot in summer
birth date
Palearctic realm
swimming
Close
water column
was
Career from 7 to 15 months. Dwarf hamsters, voles, field crickets celebrate their birthday twice a month
Marine world
nocturnal
The basics
Neotropical realm
coastal
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
Neotropical realm
teeth
Potential Habitat
d
In husbandry
Feeds while suspended in open water between surface and bottom.
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
terrestrial
Gestation
live reptiles, lizards, snakes, turtles
Body size
islands and part of Australia, many unusual animals and plants
aquatic
Warm sea
{name} birthday
Nearctic realm
Always hot
jumping
No results found
North America and Greenland, from tundra to forests
Eyes color
live birds
On the map
lunge
Female ♀
all life stages
Body color
world of Afrotropics
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
Snout size
How similar?
Male ♂
until the celebration
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?
live mammals, mice, hares, deer and others
Neither
What do they eat?
Where do they live?
Marine world
from birth to death
early young
Hard dental structures used to bite, tear, or scrape food.
world of Afrotropics
River estuary into the sea
Freshwater
Duration
saline marine habitat
This is me
Foraging activity occurs primarily during nighttime hours.
Always very wet
Gamers
Teeth count
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?
celebrated their {n} birthday
When you would have been born if you lived as {name}
very hot all year round, frequent rains, but sometimes dry
Littoral Zone
Daddies
Lifespan maximum
whole life
Hermaphrodite ⚥
North America and Greenland, from tundra to forests
embryo
Length
kg
Rapid forward strike to seize prey.
Observations
◉{N} more on tap