Ours brun vs Gray-footed Spiny-rat

Ursus arctos compared with Proechimys poliopus

Key Differences

• Ours brun is Extinct while Gray-footed Spiny-rat is Vulnerable.

Taxonomic Classification

Rank	Ours brun	Gray-footed Spiny-rat
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (mammifères)	Mammalia (mammifères)
Order	Carnivora (carnivores)	Rodentia (Rodents)
Family	Ursidae (Bears)	Echimyidae
Genus	Ursus (Bears)	Proechimys
Species	Ursus arctos	Proechimys poliopus

Evolutionary Relationship

Ours brun and Gray-footed Spiny-rat share a common ancestor at the Class level: Mammalia. (mammifères)

Conservation Status

Ours brun

EX — Extinct

Population: ~200.0K

Trend: Stable →

Gray-footed Spiny-rat

VU — Vulnerable

Physical Characteristics

Attribute	Ours brun	Gray-footed Spiny-rat
Diet	Omnivore	—
Average Lifespan	25 years	—
Average Length	2.0 m	—
Average Weight	300.0 kg	—

Habitat & Geographic Range

Ours brun

Habitat

Typically found in a wide range of habitat types.

Range

Found across Europe (6 countries).

Gray-footed Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Venezuela. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Ours brun

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.