brown bear vs Cheng s Jird

Ursus arctos compared with Meriones chengi

Key Differences

• brown bear is Extinct while Cheng s Jird is Least Concern.

Taxonomic Classification

Rank	brown bear	Cheng s Jird
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Carnivora (Carnivorans)	Rodentia (Rodents)
Family	Ursidae (Bears)	Muridae (Mice & Rats)
Genus	Ursus (Bears)	Meriones
Species	Ursus arctos	Meriones chengi

Evolutionary Relationship

brown bear and Cheng s Jird share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

brown bear

EX — Extinct

Population: ~200.0K

Trend: Stable →

Cheng s Jird

LC — Least Concern

Physical Characteristics

Attribute	brown bear	Cheng s Jird
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).

Cheng s Jird

Habitat

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.

Cheng s Jird

The Cheng s Jird (Meriones chengi) is a species in the genus Meriones. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.