The Atlantic tree mouse is a small rodent with a very long tail that lives in trees in the forests of Brazil. It skillfully climbs branches and helps spread plant seeds.
The Atlantic tree mouse differs by a very long tail that is longer than the body and the ability to live high in the trees. It is important for the forest because it spreads plant seeds and serves as food for snakes and birds.
homogamy, reproduction always with fertilization, no alternation of generations
Worker
Tail size
birth time
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
very hot and very humid all year round, rain almost every day
Inhabits dense tree-covered areas with closed canopy.
days
South and Central America, hot and humid, huge forests
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
South and Central America, hot and humid, huge forests
insects
About health
When your next birthday would fall if you lived as {name}
tropical forest
Repro interval
results
protection from predators
summer warm, winter not very cold
Colors
Sex
Upcoming jubilees
Gremllins
mo
hot, rains in summer, little precipitation in winter
conifer cones
little precipitation in winter, more in summer
Trophic type
Filters
Tail count
young shoots and sprouts
always hot and humid, huge trees and vines
Paws size
Upcoming birthdays
Breeding structure built or used for laying eggs and raising offspring.
in bushes or on a tree
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
rains almost always, very humid
young are born live on land, not hatched from eggs or roe
Age (juvenile)
Age (from birth to death)
cones of coniferous trees with seeds
Hot, little precipitation in winter
Age (embryo)
Wanderers
Jubilee = every 10th birthday
Warm summer and frequent rains
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.
Pets
terrestrial shrubland
Feeding occurs primarily on land or in vegetation.
{name} jubilee
paw
terrestrial shrub habitats — maquis, chaparral, bush
cm
Old-timers
Find an animal or breed...
bark
turns
Rascals
terrestrial forest
fruits
Tail color
Paws 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
Actively searching habitats to locate food items.
Where are they found?
38 to 65 grams, 15 – 40 centimeters
Paws count
Describes food handling or digging performed with the forelimbs.
Whiskers color
Low precipitation in winter
Legendary longevity: over 100 years. Galapagos tortoises, Greenland sharks, ocean quahogs celebrate with family once every 4 years
Offspring
Tropical moist forest
Elders
Bro
normal sexual
Taxons
seeds, berries, fruits
if born as {name}
Foraging takes place among trees and woody vegetation.
omnivore
age
birth date
rest
collects and gnaws on trees
Fur color
Close
was
Career from 7 to 15 months. Dwarf hamsters, voles, field crickets celebrate their birthday twice a month
The basics
Neotropical realm
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
Neotropical realm
teeth
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
young leaves
land
summer very hot, above +25…+30 °C
{name} birthday
twigs
Always hot
No results found
On the map
young shoots, sprouts, green plant shoots
Female ♀
all life stages
Body 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
Shelter used specifically for reproduction or nesting.
Maturity
terrestrial habitat, land surface outside water
sq mm
yr
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
from birth to adulthood
Young offspring still dependent on parental care.
nest
What do they eat?
forests
Where do they live?
Immature individual that has not yet reached reproductive maturity.
Hard dental structures used to bite, tear, or scrape food.
forests on land — tropical, temperate, boreal
world of Afrotropics
nest high on shrub or tree branches
Duration
live insects
Always hot and wet
This is me
Always very wet
Gamers
How are they built?
mm
Theoretical lifespan
ml
Stars
Link copied
My age?
wk
My size?
terrestrial
Asexual
swap
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?
inhabit and develop on land, outside water bodies
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
Daddies
Lifespan maximum
foraging
Hermaphrodite ⚥
embryo
Orange
caring mother
Length
kg
arboreal
Observations
◉{N} more on tap