The river frog is a large amphibian that lives in rivers, swamps, and lakes in the southeast of North America. It swims well, jumps, and hunts small animals.
The river frog differs from related species by its large size and dark coloration without bright spots. It is important for nature because it eats many insects and serves as food for snakes, birds, and mammals.
Immature form that undergoes metamorphosis before adulthood.
Worker
Tail size
birth time
ambush
live adult frogs and toads
Dogs, dolphins, lynx hang out for 9-25 years and party on their birthday three times a year
Tongue size
m
Map
will celebrate their {n} birthday
shallow coastal zones of rivers and lakes
g
t
When your next jubilee falls in {name} life years
Human
Legs count
days
Warm summer
worms
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
fish of small size
insects
About health
When your next birthday would fall if you lived as {name}
Repro interval
results
Eyes count
summer warm, winter not very cold
Colors
Sex
Upcoming jubilees
Gremllins
mo
sticky tongue
Trophic type
Filters
small fish
Tail count
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
tongue
Desert and dry shrubs
rains almost always, very humid
Age (from birth to death)
most of Europe and Asia, various forests, steppes and tundra
Wanderers
Jubilee = every 10th birthday
Warm summer and frequent rains
Earliest developmental stage inside an egg or womb.
Business sausages
Lifespan average
young after fast growth
Regeneration
Juvenile stage following larval metamorphosis but not yet adult.
summer warm, rains frequent
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
end of acceleration
Share
Find a pet...
Mature, fully developed individual capable of reproduction.
hot, uneven rains, lots of grass and trees
Egg count
Actively hunting and capturing live prey.
where the river flows into the sea, slightly salty water, lots of fish and birds
Pets
Nearctic realm
Legs size
{name} jubilee
cm
Old-timers
Find an animal or breed...
turns
Rascals
Tail color
Litter size
Tropical savanna
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
Egg color
Where are they found?
Species lacks any fixed or lasting shelter structure.
swamp
38 to 65 grams, 15 – 40 centimeters
all rivers and lakes
Hind legs size
Legendary longevity: over 100 years. Galapagos tortoises, Greenland sharks, ocean quahogs celebrate with family once every 4 years
Offspring
Elders
Protrusible tongue coated with adhesive mucus for capturing prey.
Bro
lakes and ponds
Taxons
carnivore
if born as {name}
age
Predator remains still and concealed before launching a sudden attack.
birth date
Palearctic realm
no permanent shelter
freshwater coastal and creek
Close
was
Career from 7 to 15 months. Dwarf hamsters, voles, field crickets celebrate their birthday twice a month
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
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
vision
summer very hot, above +25…+30 °C
{name} birthday
live annelid worms
Nearctic realm
No results found
North America and Greenland, from tundra to forests
Eyes color
On the map
lunge
Pleasant summer
Female ♀
all life stages
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
Skin color
Tongue count
sq mm
yr
comfortable summer, +20…+25 °C
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?
Neither
from birth to adulthood
What do they eat?
Where do they live?
Immature individual that has not yet reached reproductive maturity.
early young
River estuary into the sea
Freshwater
Duration
live insects
This is me
freshwater
Always very wet
Gamers
How are they built?
frogs and toads
mm
Theoretical lifespan
ml
Stars
Link copied
My age?
wk
My size?
Hind legs count
Asexual
swap
freshwater environment — rivers, lakes, ponds, swamps
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?
Warm summer and lots of rain
celebrated their {n} birthday
When you would have been born if you lived as {name}
Daddies
Gills count
Lifespan maximum
river
Hermaphrodite ⚥
Uses the tongue to locate, manipulate, or ingest food items.
North America and Greenland, from tundra to forests
Primarily detects and locates food using eyesight.
embryo
Orange
Length
kg
very hot and dry, rare rains, cacti live
lots of rain, warm and pleasant summer
Rapid forward strike to seize prey.
Observations
◉{N} more on tap