Mount Graham's squirrel is a small rodent from the squirrel family. It lives only in high-mountain coniferous forests of one district in northern Mexico and spends almost all its time in trees.
The Merens squirrel has a very small range, occupying only one mountain range. It is important for the forest because it disperses seeds of coniferous trees and serves as food for predators.
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
summer mild, +15…+20 °C
t
When your next jubilee falls in {name} life years
Human
protection from weather
Claws color
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
fungi
About health
cool, lots of coniferous trees, snow in winter
When your next birthday would fall if you lived as {name}
Repro interval
results
summer warm, winter not very cold
Cool summer with almost no rain
Colors
Cool summer
Sex
Upcoming jubilees
Gremllins
mo
Teeth color
rains are very rare, almost a desert
conifer cones
needles
Trophic type
Filters
cool summer with almost no rain
young shoots and sprouts
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
Desert and dry shrubs
young shoots
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
Age (embryo)
Wanderers
Jubilee = every 10th birthday
Earliest developmental stage inside an egg or womb.
Business sausages
Lifespan average
in a terrestrial nest
Whiskers size
live birth
What do they look like?
Maturity
emergence (insects)
end of lifespan
How do they live?
fertilization / egg laying
mycophagy, feed on fungi
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.
kidneys
Pets
Nearctic realm
Lots of rain and cool summer
Feeding occurs primarily on land or in vegetation.
{name} jubilee
Claws count
cm
Temperate coniferous forest
Old-timers
Find an animal or breed...
Claws size
turns
Rascals
pine seeds
Tail color
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
coniferous forest
°C
Not specified
Actively searching habitats to locate food items.
Where are they found?
herbivore
Whiskers color
Summer almost without rain
lots of rain, cool summer, snow in winter
Legendary longevity: over 100 years. Galapagos tortoises, Greenland sharks, ocean quahogs celebrate with family once every 4 years
Offspring
Elders
Bro
normal sexual
Taxons
almost no rain in summer, more precipitation in winter
if born as {name}
Foraging takes place among trees and woody vegetation.
plant spines and thorns
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
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
teeth
Potential Habitat
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
from 130 grams to 0.5 kilograms, 0.35 – 0.8 meters
thorns and spines of plants — cacti, thistles, acacia
land
{name} birthday
Nearctic realm
No results found
North America and Greenland, from tundra to forests
branches
On the map
young shoots, sprouts, green plant shoots
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
Skin color
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
Very dry
Neither
from birth to adulthood
Young offspring still dependent on parental care.
nest
What do they eat?
Where do they live?
moss
Immature individual that has not yet reached reproductive maturity.
mountains
Hard dental structures used to bite, tear, or scrape food.
world of Afrotropics
nest high on shrub or tree branches
Duration
This is me
Gamers
Teeth count
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}
Daddies
Lifespan maximum
foraging
Hermaphrodite ⚥
North America and Greenland, from tundra to forests
embryo
Zucchini
Denotes a mountainous habitat preference.
caring mother
Length
kg
very hot and dry, rare rains, cacti live
arboreal
Observations
◉{N} more on tap