Ondatra zibethicus FWS🐭

Photo: David Menke · Public domain

SpeciesRodentiaCricetidae
Mammals

🐭Muskrat

Ondatra zibethicus (Linnaeus, 1766)

The muskrat or common muskrat is a medium-sized semiaquatic rodent.

Text: Wikipedia, CC BY-SA 4.0.

Videos
7
Photos
1
Measurements
12
vs you
≈ 1/62nd of your weight
Also called
Common Muskrat
Conservation status
LCLeast concern

IUCN Red List assessment, 2016.

Population trendStable
Key measurements
Body mass
1 kg
Body length
0.3 m
Shoulder height
not recorded
Top speed
not recorded
Bite force
not recorded
Maximum lifespan
9.99 years
All measurements ↓
Facts and figures

Everything we know about the Muskrat

Typical adult figures. Where a value is an estimate rather than a measurement, it says so.

Body mass
1 kg
COMBINE
Other figures ↓

Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0

Figures vary

  • 1.36 kgAnAgeAnAge build 15, 2023-07-03 (HAGR)data quality: low
Body length
0.3 m
COMBINE
Details ↓

Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0

Brain mass
5.22 g
COMBINE
Details ↓

Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0

Maximum lifespan
9.99 years
COMBINE
Details ↓

Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0

Generation length
3.61 years
COMBINE
Details ↓

Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0

Age at maturity
198 days
COMBINE
Details ↓

Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0

Gestation
28 days
COMBINE
Other figures ↓

Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0

Figures vary

  • 26 daysAnAgeAnAge build 15, 2023-07-03 (HAGR)data quality: low
Litter size
about 6
COMBINE
Other figures ↓

Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0

Figures vary

  • 6.7AnAgeAnAge build 15, 2023-07-03 (HAGR)data quality: low
Trophic level
Herbivore
COMBINE
Details ↓

Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0

Activity cycle
Crepuscular / mixed
COMBINE
Details ↓

Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0

Home range
0 km²
COMBINE
Details ↓

Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0

Volume l
1 Laverage
Details ↓

Body mass at ~1.0 kg/L, the density of vertebrate tissue.

average = a mean across sexes or species in a group.

Not recorded for Muskrat yet: shoulder height, top speed, bite force.

Where it sits

Family tree

  1. kingdomAnimalia
  2. ›phylumChordata
  3. ›classMammalia
  4. ›orderRodentia
  5. ›familyCricetidae
  6. ›genusOndatra
  7. ›speciesOndatra zibethicus
Full lineage
  1. classMammals · Mammalia
  2. orderRodents · Rodentia
  3. subfamilyArvicolinae
  4. genusOndatra
All 15 branches ↓
  1. kingdomMetazoa
  2. phylumChordata
  3. subphylumCraniata
  4. subphylumVertebrata
  5. superclassGnathostomata
  6. superclassSarcopterygii
  7. superclassTetrapoda
  8. classMammals · Mammalia
  9. subclassTheria
  10. superorderEuarchontoglires
  11. orderRodents · Rodentia
  12. suborderMyomorpha
  13. familyCricetidae
  14. subfamilyArvicolinae
  15. genusOndatra
More

More about the Muskrat

Closest relative on this site
🐭 European water vole — last shared an ancestor ≈ 14 million years ago.
What it eats
leaves, roots and other plants90%
insects and other invertebrates10%
In other languages
bisam (nb), Bisamratte (de), ondatra pižmová (cs), piisami (fi), rat musqué (fr), muskusrat (nl) … and 26 more languages

Animals caught on camera

Real footage of the animals on this site — hunting, fighting, and getting on with it.

See all 7 videos →
Tools

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