brown bear vs Chihuahua Gray

Ursus arctos compared with Aphonopelma pallidum

Key Differences

• brown bear is Extinct while Chihuahua Gray is Least Concern.

Taxonomic Classification

Rank	brown bear	Chihuahua Gray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Arachnida (Arachnids)
Order	Carnivora (Carnivorans)	Araneae (Araneae)
Family	Ursidae (Bears)	Theraphosidae
Genus	Ursus (Bears)	Aphonopelma
Species	Ursus arctos	Aphonopelma pallidum

Evolutionary Relationship

brown bear and Chihuahua Gray share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

brown bear

EX — Extinct

Population: ~200.0K

Trend: Stable →

Chihuahua Gray

LC — Least Concern

Physical Characteristics

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

Habitat & Geographic Range

brown bear

Habitat

Typically found in a wide range of habitat types.

Range

Found across Europe (6 countries).

Chihuahua Gray

Habitat

Typically found in terrestrial habitats from forests to deserts.

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.

Chihuahua Gray

The Chihuahua Gray (Aphonopelma pallidum) is a species in the genus Aphonopelma. It is currently classified as Least Concern on the IUCN Red List. Typically found in terrestrial habitats from forests to deserts.