🦫Eurasian beaver
Bæveren (Castor fiber), også kaldet europæisk bæver, er en stor gnaver i familien bævere. Den var nær udryddelse i begyndelsen af 1900-tallet på grund af jagt, men er siden genudsat mange steder i Europa og Asien, hvor den nu findes fra Storbritannien til Kina og Mongoliet. I Danmark blev den genudsat i 1999. Bævere er kendt for at lave dæmninger, men graver også kanaler til flådning af træstammer og grene. Bæverboet bygges af grene med en indgang placeret under vandet, men boet kan også udgraves i en brink.
Text: Wikipedia, CC BY-SA 4.0.
IUCN Red List assessment, 2021.
- Body mass
- 19 kg
- Body length
- 0.77 m
- Shoulder height
- not recorded
- Top speed
- not recorded
- Bite force
- not recorded
- Maximum lifespan
- 35 years
Everything we know about the Eurasian beaver
Typical adult figures. Where a value is an estimate rather than a measurement, it says so.
Body mass19 kgCOMBINEOther figures ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Figures vary
- 25 kgAnAgeAnAge build 15, 2023-07-03 (HAGR)data quality: low
Body length0.77 mestimatedCOMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Brain mass45 gCOMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Maximum lifespan35 yearsCOMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Generation length9.02 yearsCOMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Age at maturity2.8 yearsCOMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Gestation107 daysCOMBINEOther figures ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Figures vary
- 105 daysAnAgeAnAge build 15, 2023-07-03 (HAGR)data quality: low
Litter sizeabout 3COMBINEOther figures ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Figures vary
- 3AnAgeAnAge build 15, 2023-07-03 (HAGR)data quality: low
Trophic levelHerbivoreCOMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Activity cycleCrepuscular / mixedCOMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Volume l19 LaverageDetails ↓Hide ↑
Body mass at ~1.0 kg/L, the density of vertebrate tissue.
estimated = a model's estimate for a species nobody has measured; average = a mean across sexes or species in a group.
Not recorded for Eurasian beaver yet: shoulder height, top speed, bite force.
Family tree
- kingdomAnimalia
- ›phylumChordata
- ›classMammalia
- ›orderRodentia
- ›familyCastoridae
- ›genusCastor
- ›speciesCastor fiber
- classMammals · Mammalia
- orderRodents · Rodentia
- familyCastoridae
- genusCastor
All 14 branches ↓Fewer branches ↑
- kingdomMetazoa
- phylumChordata
- subphylumCraniata
- subphylumVertebrata
- superclassGnathostomata
- superclassSarcopterygii
- superclassTetrapoda
- classMammals · Mammalia
- subclassTheria
- superorderEuarchontoglires
- orderRodents · Rodentia
- suborderCastorimorpha
- familyCastoridae
- genusCastor
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