American marten vs brown bear

Martes americana compared with Ursus arctos

Key Differences

• American marten is Least Concern while brown bear is Extinct.

Taxonomic Classification

Rank	American marten	brown bear
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order same	Carnivora (Carnivorans)	Carnivora (Carnivorans)
Family	Mustelidae (Weasels & Otters)	Ursidae (Bears)
Genus	Martes	Ursus (Bears)
Species	Martes americana	Ursus arctos

Evolutionary Relationship

American marten and brown bear share a common ancestor at the Order level: Carnivora. (Carnivorans)

Conservation Status

American marten

LC — Least Concern

brown bear

EX — Extinct

Population: ~200.0K

Trend: Stable →

Physical Characteristics

Attribute	American marten	brown bear
Diet	—	Omnivore
Average Lifespan	—	25 years
Average Length	—	2.0 m
Average Weight	—	300.0 kg

Habitat & Geographic Range

American marten

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in United States.

brown bear

Habitat

Typically found in a wide range of habitat types.

Range

Found across Europe (6 countries).

American marten

The American marten (Martes americana) is a species in the genus Martes. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

brown bear

The world's most widely distributed bear species, brown bears range from North America and Europe across Russia to Japan, occupying forests, tundra, and alpine meadows. Adults can weigh up to 700 kg in coastal Alaskan populations. Omnivores that consume berries, roots, fish, and carrion, brown bears are a keystone species that distribute nutrients across landscapes. Most populations are stable, though some subspecies are threatened.