Cavia intermedia is a rare small rodent from the guinea pig family. It lives only on two tiny islands off the coast of Brazil and is threatened with complete extinction.
This species differs from other sea pigs by its very small range—just two islands. It is important for nature as part of the island ecosystem and helps maintain vegetation balance.
Legendary longevity: over 100 years. Galapagos tortoises, Greenland sharks, ocean quahogs celebrate with family once every 4 years
homogamy, reproduction always with fertilization, no alternation of generations
Offspring
Worker
Elders
leaves and stems of grasses and other herbaceous vegetation
Bro
birth time
normal sexual
Taxons
if born as {name}
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
age
t
When your next jubilee falls in {name} life years
Human
birth date
no permanent shelter
Legs count
rest
Fur color
Close
was
days
South and Central America, hot and humid, huge forests
Career from 7 to 15 months. Dwarf hamsters, voles, field crickets celebrate their birthday twice a month
Warm summer
The basics
How old you would be if you lived as {name}
Neotropical realm
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.
My weight?
Non-stop carnival: they only live a few days. Mayflies, rotifers, midges celebrate their birthday more than twice a day
adult
Maturity
primary food sources
Neotropical realm
South and Central America, hot and humid, huge forests
teeth
Potential Habitat
About health
When your next birthday would fall if you lived as {name}
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
Repro interval
results
Mass
young shoots and leaves of plants
protection from predators
Mosquitoes, fruit flies, small crustaceans hustle for up to 7 months and throw a birthday party every week
Plants
summer warm, winter not very cold
Gestation
from 130 grams to 0.5 kilograms, 0.35 – 0.8 meters
land
Colors
Sex
{name} birthday
Upcoming jubilees
Gremllins
mo
conifer cones
No results found
Trophic type
Filters
islands
On the map
Captures or processes food by biting or nipping with the mouth.
young shoots, sprouts, green plant shoots
Female ♀
all life stages
young shoots and sprouts
gnaws plants
leaves
Body color
grass
Upcoming birthdays
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.
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
birth year
Maturity
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
sq mm
yr
Age (embryo)
Wanderers
How similar?
Jubilee = every 10th birthday
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?
Neither
Earliest developmental stage inside an egg or womb.
Business sausages
from birth to adulthood
Young offspring still dependent on parental care.
Lifespan average
What do they eat?
in a terrestrial nest
leaves
Where do they live?
Immature individual that has not yet reached reproductive maturity.
Incisors color
grasses
live birth
Hard dental structures used to bite, tear, or scrape food.
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
Duration
Find a pet...
Mature, fully developed individual capable of reproduction.
This is me
Always very wet
Gamers
Pets
How are they built?
mm
Theoretical lifespan
ml
Stars
Link copied
My age?
biting
wk
My size?
{name} jubilee
Asexual
swap
cm
Old-timers
Find an animal or breed...
turns
Rabbits, falcons, red-eared turtles hang out for 6-9 years and party on their birthday four times a year
Rascals
Where do they take shelter?
Warm summer and lots of rain
inhabit and develop on land, outside water bodies
stems
celebrated their {n} birthday
When you would have been born if you lived as {name}
Litter size
Daddies
Lifespan maximum
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
grazing
°C
Not specified
Hermaphrodite ⚥
Where are they found?
Species lacks any fixed or lasting shelter structure.
embryo
Incisors count
Zucchini
herbivore
Length
kg
lots of rain, warm and pleasant summer
Feeds by cropping or nibbling low-growing vegetation or algae.
Observations
◉{N} more on tap