Ferret

Ferrets — © Zveriki.com, AI-generated image based on the original work of Jphi09, Creative Commons Attribution 3.0 Unported

Age

The species typically lives for six to ten years, with a maximum lifespan of fourteen years, and a theoretical lifespan ranging from five years seven months to eleven years one month. Ferrets reach sexual maturity between eight months and one year; their eyes open between three weeks and one month and one week, and they begin walking at one month and one week old. The embryo develops inside the mother after fertilization, followed by the newborn stage, where the young are born blind, deaf, and with little fur, consuming only maternal milk. Subsequently, the species enters the adult stage, lasting from one to nine years, during which the animal fully grows and can reproduce.

Phenotype

The young ferret receives nourishment from the mother via the placenta. The eyes are closed and open only during the fourth or fifth week; the skin is pink and thin during the first days, and fur begins to grow within a week. The species has dense, short fur with coloration varying from light to dark brown with black markings. The body is long, slender, and very flexible, aiding in navigating narrow burrows and shelters. It possesses strong, sharp claws on all paws, used for digging and seizing prey. A long, bushy tail assists in maintaining balance. The adult has sharp teeth that help kill and eat prey.

Physiology

The ferret’s body height ranges from 1.7 to 3.25 meters, and its body length varies from 32 to 50 centimeters; the species' mass is between 0.6 and 2 kilograms. During the embryo stage, the body mass is 0 grams, while in the young stage, the body mass ranges from 6 to 250 grams and the body length is from 8 to 15 centimeters. The adult ferret has a body mass of 0.8 to 2 kilograms and a body length of 38 to 50 centimeters.

Habitat

The species inhabits temperate mixed forests with warm summers and many oak, birch, and maple trees, as well as flooded meadows where water frequently covers the ground and there is abundant grass; it also lives in taiga forests characterized by cold winters and numerous coniferous trees such as spruce and pine, and tundra regions with very cold temperatures and short summers, where trees are almost absent and there is much moss. Ferrets occupy terrestrial landscapes including forest floors and woodlands. The climate varies, encompassing cool summers of +15 to +20 degrees Celsius, consistently wet conditions with frequent rain and high humidity, warm summers with abundant rainfall, warm winters that are not very cold, and pleasant summers of +20 to +25 degrees Celsius.

Shelter

The ferret lives in underground burrows or in cages and enclosures; the species uses dens for reproduction, rest, and protection from the sun. The den is constructed from paper, fabric, and hay.

Geography

The ferret is found within the Palearctic biogeographical region and inhabits Celtic broadleaf forests, Baltic mixed forests, and European Atlantic mixed forests ecosystems.

Feeding

The ferret is a strict predator and consumes only meat, including rodents, rabbits, and birds in the wild. Its diet consists of rodents, rabbits, birds, eggs, insects, hares, and rabbits. The species obtains food through active hunting and pursuit of small prey. Daily food intake ranges from 50 grams to 150 grams. The ferret’s prey includes mice, hamsters, lagomorphs, rodents, bats, and mammals. At home, the species is given raw meat or special feed.

Reproduction

The species inhabits and develops on land, away from bodies of water, and their young develop in nests built on or near the ground, sometimes directly on the surface of the soil. Reproduction occurs in spring, and the female gives birth to litters of 3 to 8 ferrets after a gestation period of 42 days. The young are born live on land and are fed milk and protected by the mother in the nest. Nests can be located directly on the ground surface or concealed within an underground burrow. Only the mother displays parental care for the offspring. The species reaches maturity from 8 months to 1 year, and reproduction involves a homogamic process with fertilization occurring without generation change. The interval between reproductions is 1 year, and litters consist of 3 to 8 young.

Mass
600–2000 g
Length
320–500 mm
Lifespan
2192–3653 days 6–10 years
178973
0
1
ferrets
en
ferrets
Mustela putorius furo
The ferret is a small predatory mammal from the mustelid family. It is the domestic form of the forest polecat and has lived next to humans for hundreds of years as a pet and rodent hunter.
The ferret differs from the wild polecat by its more friendly character and various fur colors. It is important for nature because its wild ancestors help control the population of rodents in forests and fields.
hunting small prey
trophic:carnivore
feeding_timing:nocturnal
#f3f1ec
Mass (adult carnivoran, male)
800–2000 g
Mass (embryo)
1–10 g
Mass (young)
6–250 g
Mass (adult carnivoran, female)
600–1200 g
Length (adult carnivoran, male)
380–500 mm
Length (adult carnivoran, female)
320–400 mm
Length (young)
80–150 mm
Height
1700–3250 mm
Lifespan maximum
5114 days 14 years
Theoretical lifespan
2027–4054 days 6–11 years
Litter size
3–8
Maturity
240–365 days 8 months – 1 year
Offspring
3–8
Repro interval
365 days 1 year
Eyes count (young)
2
Teeth count (adult carnivoran)
34
Claws count (adult carnivoran)
20
Body size (adult carnivoran)
0.32–0.5 mm
Tail size (adult carnivoran)
70–150 mm
Reproduction
normal sexual
Comparable in mass
Coconut
Biome
Flooded grasslands
Biome
Temperate mixed forest
Biome
Taiga
Realm
Domestic world
Biome
Tundra
Realm
Palearctic realm
Landscape
terrestrial forest
Climate
Warm summer and lots of rain
Landscape
terrestrial
Climate
Always very wet
Climate
Warm summer
Climate
Cool summer
Climate
Pleasant summer
Landscape
woodlands
Food environment
aquatic
Food environment
coastal
Food environment
underground
Food environment
terrestrial
Shelter
den
Trophic type
carnivore
Reproduction
caring mother
Reproduction
nest on the ground
Reproduction
in a burrow
Reproduction
live birth
Reproduction
in a terrestrial nest
Reproduction
land
Physiology
Ferrets molt twice a year — in spring and autumn. In winter, the fur becomes thicker, and in summer — shorter and lighter.
2191.5
3652.5
2027.1375
4054.275
320.0
500.0
600.0
2000.0
Ferrets molt twice a year — in spring and autumn. In winter, the fur becomes thicker, and in summer — shorter and lighter.
-1
-1
hay
homogamy, reproduction always with fertilization, no alternation of generations
Worker
Tail size
Were {name} like {animal}, then:
birth time
Submerges underwater to reach prey or food at depth.
Describes the act of excavating soil or substrate to locate or access food.
breeding
pursuit
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
very cold, short summer, almost no trees, lots of moss
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 carnivoran
Maturity
Coconut
insects
About health
When your next birthday would fall if you lived as {name}
rodents in general — rats, squirrels, ground squirrels
Repro interval
results
Eyes count
summer warm, winter not very cold
Colors
Cool summer
Sex
Upcoming jubilees
Gremllins
diving
mo
Trophic type
Filters
running
Captures or processes food by biting or nipping with the mouth.
Palearctic realm
den
Upcoming birthdays
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
in a burrow
Height
nest on the ground
rains almost always, very humid
young are born live on land, not hatched from eggs or roe
Age (from birth to death)
crevice
Domestic world
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
More:
Tundra
Earliest developmental stage inside an egg or womb.
Business sausages
Lifespan average
nest located directly on the ground surface on land, only the mother provides parental care for the offspring
in a terrestrial nest
live birth
What do they look like?
Maturity
emergence (insects)
end of lifespan
birds
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.
nest hidden in an underground burrow
Actively hunting and capturing live prey.
from 0.5 to 0.8 kilograms, 0.5 – 1 meter
digging
Pets
biting
Feeding occurs primarily on land or in vegetation.
{name} jubilee
live in homes and on farms
Claws count
cm
Old-timers
Find an animal or breed...
turns
Rascals
terrestrial forest
Tail color
Flooded grasslands
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
Share
Where are they found?
hares and rabbits
Locomotion through water employed while searching for or capturing prey.
Legendary longevity: over 100 years. Galapagos tortoises, Greenland sharks, ocean quahogs celebrate with family once every 4 years
Offspring
Elders
Bro
normal sexual
Taxons
carnivore
if born as {name}
Actively chases and captures mobile prey in open space.
age
birth date
swimming
Palearctic realm
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
coastal
My weight?
Non-stop carnival: they only live a few days. Mayflies, rotifers, midges celebrate their birthday more than twice a day
surface
primary food sources
teeth
Potential Habitat
embryo
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
Feeding occurs in water bodies such as rivers, lakes, or oceans.
Mass
live hares and rabbits
cold winter, lots of coniferous trees: spruce, pine
Mosquitoes, fruit flies, small crustaceans hustle for up to 7 months and throw a birthday party every week
terrestrial
Body size
aquatic
land
{name} birthday
Link copied
No results found
underground
live birds
On the map
Pleasant summer
all life stages
Female ♀
hunting small prey
nest located directly on the ground surface on land
rodents
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
bird eggs
rabbits
terrestrial habitat, land surface outside water
sq mm
yr
comfortable summer, +20…+25 °C
protection from sun
How similar?
live in homes and on farms
Male ♂
until the celebration
young
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
Young offspring still dependent on parental care.
caring mother
What do they eat?
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
water often floods the land, lots of grass
rodents
Temperate mixed forest
Duration
live insects
This is me
most of Europe and Asia, various forests, steppes and tundra
Foraging activity occurs primarily during nighttime hours.
Always very wet
tissue
Gamers
Teeth count
How are they built?
mm
Theoretical lifespan
ml
Stars
Link copied
My age?
wk
My size?
terrestrial
Lives in open or semi-open areas with scattered trees and shrubs.
Taiga
Asexual
swap
active predation
Who among us will transform as if by magic and become like {animal}?
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
paper
celebrated their {n} birthday
When you would have been born if you lived as {name}
woodlands
Daddies
Lifespan maximum
Domestic world
Hermaphrodite ⚥
embryo
eggs
summer warm, many oaks, birches, maples
Length
kg
lots of rain, warm and pleasant summer
Observations
◉{N} more on tap
young
pupa
imago
adolescent
adolescent
ferrets
fretka
ferret
abn-mqrd
mangusty
ferrets
feretto
ferrets
fretka
peleos
fretka
feretka
ferrets
fretka
meng-yan-diao
  • The ferret is an active, playful, and curious animal that constantly runs around the apartment, trying to attract attention.
  • It can squeeze through very narrow gaps thanks to its flexible body.
  • Ferrets have an excellent sense of smell and are used to hunt rabbits.
  • They produce many sounds — from “dooking” to hissing.
  • Ferrets sleep up to 18 hours a day.
  • In captivity they have lived to 8–10 years.
  • The ferret is a domesticated form of the European polecat that has been bred for more than 2000 years.
  • Ferrets can be trained to walk on a leash.
  • Litters usually contain 5–10 young.
  • They undergo seasonal moulting.
  • The ferret is a domesticated form of the European polecat that has been bred for more than 2000 years.

Age

  • Ferrets sleep up to 18 hours a day.
  • In captivity they have lived to 8–10 years.
  • Litters usually contain 5–10 young.
  • They undergo seasonal moulting.

The species typically lives for six to ten years, with a maximum lifespan of fourteen years, and a theoretical lifespan ranging from five years seven months to eleven years one month. Ferrets reach sexual maturity between eight months and one year; their eyes open between three weeks and one month and one week, and they begin walking at one month and one week old. The embryo develops inside the mother after fertilization, followed by the newborn stage, where the young are born blind, deaf, and with little fur, consuming only maternal milk. Subsequently, the species enters the adult stage, lasting from one to nine years, during which the animal fully grows and can reproduce.

Phenotype

  • It can squeeze through very narrow gaps thanks to its flexible body.
  • Ferrets have an excellent sense of smell and are used to hunt rabbits.

The young ferret receives nourishment from the mother via the placenta. The eyes are closed and open only during the fourth or fifth week; the skin is pink and thin during the first days, and fur begins to grow within a week. The species has dense, short fur with coloration varying from light to dark brown with black markings. The body is long, slender, and very flexible, aiding in navigating narrow burrows and shelters. It possesses strong, sharp claws on all paws, used for digging and seizing prey. A long, bushy tail assists in maintaining balance. The adult has sharp teeth that help kill and eat prey.

Physiology

  • They undergo seasonal moulting.

The ferret’s body height ranges from 1.7 to 3.25 meters, and its body length varies from 32 to 50 centimeters; the species' mass is between 0.6 and 2 kilograms. During the embryo stage, the body mass is 0 grams, while in the young stage, the body mass ranges from 6 to 250 grams and the body length is from 8 to 15 centimeters. The adult ferret has a body mass of 0.8 to 2 kilograms and a body length of 38 to 50 centimeters.

Habitat

The species inhabits temperate mixed forests with warm summers and many oak, birch, and maple trees, as well as flooded meadows where water frequently covers the ground and there is abundant grass; it also lives in taiga forests characterized by cold winters and numerous coniferous trees such as spruce and pine, and tundra regions with very cold temperatures and short summers, where trees are almost absent and there is much moss. Ferrets occupy terrestrial landscapes including forest floors and woodlands. The climate varies, encompassing cool summers of +15 to +20 degrees Celsius, consistently wet conditions with frequent rain and high humidity, warm summers with abundant rainfall, warm winters that are not very cold, and pleasant summers of +20 to +25 degrees Celsius.

Shelter

The ferret lives in underground burrows or in cages and enclosures; the species uses dens for reproduction, rest, and protection from the sun. The den is constructed from paper, fabric, and hay.

Geography

The ferret is found within the Palearctic biogeographical region and inhabits Celtic broadleaf forests, Baltic mixed forests, and European Atlantic mixed forests ecosystems.

Feeding

The ferret is a strict predator and consumes only meat, including rodents, rabbits, and birds in the wild. Its diet consists of rodents, rabbits, birds, eggs, insects, hares, and rabbits. The species obtains food through active hunting and pursuit of small prey. Daily food intake ranges from 50 grams to 150 grams. The ferret’s prey includes mice, hamsters, lagomorphs, rodents, bats, and mammals. At home, the species is given raw meat or special feed.

Reproduction

  • Litters usually contain 5–10 young.

The species inhabits and develops on land, away from bodies of water, and their young develop in nests built on or near the ground, sometimes directly on the surface of the soil. Reproduction occurs in spring, and the female gives birth to litters of 3 to 8 ferrets after a gestation period of 42 days. The young are born live on land and are fed milk and protected by the mother in the nest. Nests can be located directly on the ground surface or concealed within an underground burrow. Only the mother displays parental care for the offspring. The species reaches maturity from 8 months to 1 year, and reproduction involves a homogamic process with fertilization occurring without generation change. The interval between reproductions is 1 year, and litters consist of 3 to 8 young.

Size

  • It can squeeze through very narrow gaps thanks to its flexible body.
  • The ferret is an active, playful, and curious animal that constantly runs around the apartment, trying to attract attention.
  • Ferrets have an excellent sense of smell and are used to hunt rabbits.
  • They produce many sounds — from “dooking” to hissing.
  • Ferrets can be trained to walk on a leash.

In Husbandry

  • In captivity they have lived to 8–10 years.