The cotton mouse is a small rodent that lives in forests and swamps in the southeast of North America. It builds nests from plant fibers resembling cotton.
The cotton mouse differs from related species by softer fur and the habit of using plant fibers for nests. It is important for nature because it spreads plant seeds and serves as food for many predators.
meadows, prairies, forb glades on land
homogamy, reproduction always with fertilization, no alternation of generations
Whiskers count
Worker
Tail size
birth time
Describes the act of excavating soil or substrate to locate or access food.
breeding
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
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
plants
insects
About health
milk
Searches for food on or among rocks and stony surfaces.
When your next birthday would fall if you lived as {name}
Repro interval
results
protection from predators
Eyes count
summer warm, winter not very cold
Colors
Sex
Upcoming jubilees
Gremllins
mo
Teeth color
conifer cones
alpine meadows and arctic tundra on land
Trophic type
Filters
Tail count
Upcoming birthdays
Breeding structure built or used for laying eggs and raising offspring.
in bushes or on a tree
nest inside a tree trunk or in a cave/crevice
eggs, roe or offspring develop in a nest built on the ground or close to it
Truly long lives: 40-100 years. Bowhead whales, albatrosses, giant tortoises recall their birthday at most once a year
Lifespan
leaf
Seeds
Desert and dry shrubs
rains almost always, very humid
young are born live on land, not hatched from eggs or roe
in hollows and caves
Age (juvenile)
Age (from birth to death)
cones of coniferous trees with seeds
rock
Age (embryo)
most of Europe and Asia, various forests, steppes and tundra
Wanderers
Food items are collected from exposed outer surfaces of substrates.
Jubilee = every 10th birthday
Warm summer and frequent rains
berries
Ears size
small invertebrates without further specification
Earliest developmental stage inside an egg or womb.
Business sausages
fruits
Lifespan average
in a terrestrial nest
Whiskers size
live birth
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
seeds
Find a pet...
Mature, fully developed individual capable of reproduction.
hot, uneven rains, lots of grass and trees
Actively hunting and capturing live prey.
digging
Pets
Primary oral structure used to seize, manipulate, or ingest food.
Nearctic realm
juicy berries — bilberry, rowan, rosehip
Feeding occurs primarily on land or in vegetation.
{name} jubilee
paw
cm
Old-timers
Find an animal or breed...
mouth
desert and semi-desert
turns
Rascals
terrestrial forest
terrestrial grassland and steppe
terrestrial herbaceous
fruits
Tail color
drink mother's milk in childhood
Forages on tree limbs or woody stems within vegetation.
Teeth size
Ears count
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
alpine and arctic tundra
Actively searching habitats to locate food items.
Where are they found?
38 to 65 grams, 15 – 40 centimeters
Describes food handling or digging performed with the forelimbs.
Whiskers color
Legendary longevity: over 100 years. Galapagos tortoises, Greenland sharks, ocean quahogs celebrate with family once every 4 years
Offspring
Elders
small invertebrates
Bro
normal sexual
Taxons
seeds, berries, fruits
if born as {name}
Forages within or on the surface of soil or substrate.
Foraging takes place among trees and woody vegetation.
omnivore
age
birth date
Palearctic realm
arid terrestrial biotopes with sparse vegetation
rest
Fur color
Close
was
Career from 7 to 15 months. Dwarf hamsters, voles, field crickets celebrate their birthday twice a month
nocturnal
The basics
herbivory, feed only on plant food
climbing
My weight?
Non-stop carnival: they only live a few days. Mayflies, rotifers, midges celebrate their birthday more than twice a day
Insects
surface
primary food sources
teeth
after transformation until death
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
terrestrial
Gestation
land
summer very hot, above +25…+30 °C
{name} birthday
Food is gathered directly from leaf surfaces.
Nearctic realm
soil
grass
No results found
North America and Greenland, from tundra to forests
underground
Eyes color
On the map
Pleasant summer
all life stages
Female ♀
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
Shelter used specifically for reproduction or nesting.
Maturity
terrestrial habitat, land surface outside water
sq mm
yr
comfortable summer, +20…+25 °C
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
What if eaten?
nest high on branches, only the mother provides parental care for the offspring
Neither
Moving up vertical surfaces like trunks or rocks to reach food.
Young offspring still dependent on parental care.
nest
What do they eat?
Where do they live?
Ears color
Hard dental structures used to bite, tear, or scrape food.
berries
forests on land — tropical, temperate, boreal
gathering from leaves and branches
branch
Temperate mixed forest
nest high on shrub or tree branches
Duration
live insects
small invertebrates
This is me
Foraging activity occurs primarily during nighttime hours.
Always very wet
Gamers
Teeth count
How are they built?
mm
Theoretical lifespan
ml
Stars
Link copied
My age?
wk
My size?
terrestrial
Asexual
swap
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
inhabit and develop on land, outside water bodies
celebrated their {n} birthday
open grassy spaces — steppes, savannas, prairies
When you would have been born if you lived as {name}
Daddies
Lifespan maximum
foraging
Hermaphrodite ⚥
plant fibers
North America and Greenland, from tundra to forests
embryo
Orange
summer warm, many oaks, birches, maples
caring mother
Length
kg
very hot and dry, rare rains, cacti live
lots of rain, warm and pleasant summer
arboreal
Observations
◉{N} more on tap