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Species group · Mammals

Beavers

WAnimals has 2 species of beaver, in the family Castoridae.

2 species
1 family
37 countries
95 parks
Weight
12 kg – 38 kg
Length
60 cm – 90 cm
Lifespan
9 – 24 years

Ranges calculated from the profiles that record the figure, not from all 2.

All 2 species of beavers on WAnimals

Each one has its own full profile. This group does not replace them: it brings them together.

American BeaverNot Evaluated

American Beaver

Castor canadensis

8 countries75 parks2 dive sites
Eurasian BeaverLeast Concern

Eurasian Beaver

Castor fiber

32 countries20 parks

Conservation status

1 Not Evaluated1 Least Concern

No species documented in this group is genuinely at risk according to the IUCN, with the data available today.

Where they live

Recorded in 37 countries. The ones with the most species in the group:

  • Finland2
  • Poland2
  • Russia2
  • Argentina1
  • Austria1
  • Belarus1
  • Belgium1
  • Bosnia and Herzegovina1
  • Bulgaria1
  • Canada1
  • Chile1
  • Croatia1
  • Czechia1
  • Denmark1
  • Estonia1
  • France1
  • Germany1
  • Hungary1
  • Iceland1
  • Italy1
  • Latvia1
  • Lithuania1
  • Luxembourg1
  • Mexico1

Where to see them

  • Acadia1 species
  • Alberto de Agostini1 species
  • Anticosti1 species
  • Apostle Islands1 species
  • Assateague Island1 species
  • Aukštaitija National Park1 species
  • Badlands1 species
  • Banff1 species
  • Bavarian Forest (Bayerischer Wald)1 species
  • Belovezhskaya Pushcha National Park1 species
  • Białowieża1 species
  • Bieszczady1 species
  • Great Bear Rainforestdiving
  • Isle Royale National Parkdiving

Did you know…?

  • Only the colony's dominant female breeds each year.

    From American Beaver

  • It eats the bark, leaves and twigs of trees such as willow and poplar.

    From American Beaver

  • It lives in rivers, lakes and streams across much of North America.

    From American Beaver

  • It is monogamous, forming stable pairs that breed together year after year.

    From Eurasian Beaver

  • Its dams and lodges transform river ecosystems profoundly.

    From Eurasian Beaver

  • It was all but extinct in the nineteenth and twentieth centuries, with only some 1,200 animals left.

    From Eurasian Beaver

Ecosystems

  • Freshwater2

See every species group · Explore the species one by one

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