brown bear vs Komodo Dragon

Ursus arctos compared with Varanus komodoensis

Key Differences

brown bear is Extinct while Komodo Dragon is Endangered.
brown bear is omnivore while Komodo Dragon is carnivore.
brown bear is 4.3x heavier than Komodo Dragon.
Komodo Dragon lives longer (30 years vs 25 years).

Taxonomic Classification

Rank	brown bear	Komodo Dragon
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Reptilia (Reptiles)
Order	Carnivora (Carnivorans)	Squamata (Lizards & Snakes)
Family	Ursidae (Bears)	Varanidae (Monitor Lizards)
Genus	Ursus (Bears)	Varanus (Monitor Lizards)
Species	Ursus arctos	Varanus komodoensis

Evolutionary Relationship

brown bear and Komodo Dragon share a common ancestor at the Phylum level: Chordata. (Chordates)

View Phylum: Chordata

Conservation Status

brown bear

EX — Extinct

Population: ~200.0K

Trend: Stable →

Komodo Dragon

EN — Endangered

Population: ~3.5K

Trend: Stable →

Physical Characteristics

Attribute	brown bear	Komodo Dragon
Diet	Omnivore	Carnivore
Average Lifespan	25 years	30 years
Average Length	2.0 m	2.6 m
Average Weight	300.0 kg	70.0 kg

Habitat & Geographic Range

brown bear

Habitat

Typically found in a wide range of habitat types.

Range

Found across Europe (6 countries).

Komodo Dragon

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 4 distinct biome types spanning the Australasia and Indomalayan realms. Populations are also found in montane and highland environments at higher elevations.

Range

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

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.