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One of the 4 martens on WAnimals

Mammals · Carnivora · Mustelidae

Fisher

Pekania pennanti

Least Concern

The species is abundant and widely distributed; it faces no significant short-term risk.

Spotted something wrong?

The fisher, also known as the pekan or Pennant's marten, is a carnivorous mammal of the family Mustelidae, the only species in the genus Pekania. It lives mainly in the forests of Canada and the northern United States, as far as Alaska, with further populations in the Sierra Nevada of California and in the Appalachian Mountains. It stands some 25 cm tall and measures 50 cm from head to the base of the tail, which is about 30 cm long. An adult weighs between 2 and 6 kg.

Weight

2 kg – 6 kg

Size

75 cm – 1.2 m

Life expectancy

10 years

Diet

Carnivore

Feeds mainly on other animals.

Activity

Irregular activity

Active at irregular times, by day or night depending on circumstances.

Social structure

Solitary

Lives and hunts alone, joining others only to breed.

Sighting difficulty

Easy

Temperate forest
2countries29parks28same family

Fun facts

  • GeneralOne of the few predators able to kill porcupines, by going for the face.
  • It is one of the few predators able to kill porcupines: it attacks them repeatedly in the face, the only area without quills, until they are exhausted.
  • It can come down a tree head first because its ankles rotate 180 degrees, an adaptation it shares with very few carnivores.

Life cycle and biology

Skeleton type
Vertebrate - internal bony skeleton (mammal)
Habitat and environment
Mature boreal and temperate coniferous and broadleaved forest of North America
Sexual maturity
12 months
Gestation / incubation
11 months (delayed implantation; actual embryonic development, about 50 days)
Litter / clutch size
3

Sources consulted: https://es.wikipedia.org/wiki/Pekania_pennanti

Where to find it

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The pins mark the parks where its presence is documented.

Where to see it

Parks and dive sites where this species has been documented — showing 10 of 29.

Related species

Other species in the catalogue with the most in common with Fisher — same habitat, park, country, tags or family.

Same taxonomic family
Same taxonomic family
Same taxonomic family
Same taxonomic family
Same taxonomic family
Shares a park

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See full glossary
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See its range on the interactive map→
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CountriesCanada
ParksYosemiteUnited States
TagsCarnivore
Carnivore
Variable activity
Solitary
Temperate forest
Mammal
Canada
United States