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Martes pennanti


Fisher are found only in North America.


They live in mixed forests (forests that have both evergreens and leafy trees).

Body Traits

They are the largest member of the weasel family. They weigh up to 15 pounds. They have a long, thin body, brown fur, and frosted hairs on their head, neck, and shoulders. They have a long, bushy tail.


Fishers live alone mostly and are rarely seen by humans.


They are active day and night feeding mostly on small mammals, birds and some seeds, fruits. They are good climbers and can prey on squirrels high up in the trees. They are the one of the few animals that can prey on porcupines.


Their main predator is man.

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Females are pregnant for almost a full year (gestation), and they have an average of three kits.

Lifespan and/or Conservation Status

They live up to 10 years in the wild. They are listed as Lower Risk - Least Concern.



Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Mammalia
Order: Carnivora
Suborder: Caniformia
Family: Mustelidae
Subfamily: Mustelinae
Genus: Martes
Species: Martes pennanti

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