brown bear vs Dusky Dolphin

Ursus arctos compared with Lagenorhynchus obscurus

Key Differences

• brown bear is Extinct while Dusky Dolphin is Least Concern.

Taxonomic Classification

Rank	brown bear	Dusky Dolphin
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class same	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order	Carnivora (สัตว์กินเนื้อ)	Cetacea (Whales & Dolphins)
Family	Ursidae (Bears)	Delphinidae (Oceanic Dolphins)
Genus	Ursus (Bears)	Lagenorhynchus
Species	Ursus arctos	Lagenorhynchus obscurus

Evolutionary Relationship

brown bear and Dusky Dolphin share a common ancestor at the Class level: Mammalia. (สัตว์เลี้ยงลูกด้วยน้ำนม)

Conservation Status

brown bear

EX — Extinct

Population: ~200.0K

Trend: Stable →

Dusky Dolphin

LC — Least Concern

Physical Characteristics

Attribute	brown bear	Dusky Dolphin
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).

Dusky Dolphin

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.