brown bear vs common bottlenose dolphin

Ursus arctos compared with Tursiops truncatus

Key Differences

• brown bear is Extinct while common bottlenose dolphin is Least Concern.
• brown bear is omnivore while common bottlenose dolphin is carnivore.
• common bottlenose dolphin lives longer (45 years vs 25 years).

Taxonomic Classification

Rank	brown bear	common bottlenose dolphin
Kingdom same	Animalia (प्राणी)	Animalia (प्राणी)
Phylum same	Chordata (रज्जुकी)	Chordata (रज्जुकी)
Class same	Mammalia (स्तनधारी)	Mammalia (स्तनधारी)
Order	Carnivora (मांसाहारी गण)	Cetacea (Whales & Dolphins)
Family	Ursidae (Bears)	Delphinidae (Oceanic Dolphins)
Genus	Ursus (Bears)	Tursiops (Bottlenose Dolphins)
Species	Ursus arctos	Tursiops truncatus

Evolutionary Relationship

brown bear and common bottlenose dolphin share a common ancestor at the Class level: Mammalia. (स्तनधारी)

Conservation Status

brown bear

EX — Extinct

Population: ~200.0K

Trend: Stable →

common bottlenose dolphin

LC — Least Concern

Population: ~600.0K

Trend: Stable →

Physical Characteristics

Attribute	brown bear	common bottlenose dolphin
Diet	Omnivore	Carnivore
Average Lifespan	25 years	45 years
Average Length	2.0 m	3.0 m
Average Weight	300.0 kg	300.0 kg

Habitat & Geographic Range

brown bear

Habitat

Typically found in a wide range of habitat types.

Range

Found across Europe (6 countries).

common bottlenose dolphin

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 12 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), and South America (Colombia, Ecuador, Venezuela).

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.

common bottlenose dolphin

The most studied and recognized dolphin species, bottlenose dolphins inhabit warm and temperate oceans worldwide, from coastal shallows to the open sea. Highly intelligent with large brains relative to body size, they demonstrate self-recognition, complex communication, and social learning. They live in fluid fission-fusion societies and cooperate to herd fish. A keystone indicator species for marine ecosystem health.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇳🇴 Norway 🇸🇪 Sweden 🇺🇦 Ukraine