Ocean Sunfish vs Polar bear

Mola mola compared with Ursus maritimus

Key Differences

Ocean Sunfish is omnivore while Polar bear is carnivore.
Ocean Sunfish is 2.2x heavier than Polar bear.
Polar bear lives longer (25 years vs 10 years).

Taxonomic Classification

Rank	Ocean Sunfish	Polar bear
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Actinopterygii (Ray-finned Fish)	Mammalia (Mammals)
Order	Perciformes (Perch-like Fish)	Carnivora (Carnivorans)
Family	Scombridae (Tunas & Mackerels)	Ursidae (Bears)
Genus	Thunnus (Tunas)	Ursus (Bears)
Species	Mola mola	Ursus maritimus

Evolutionary Relationship

Ocean Sunfish and Polar bear share a common ancestor at the Phylum level: Chordata. (Chordates)

View Phylum: Chordata

Conservation Status

Ocean Sunfish

VU — Vulnerable

Trend: Decreasing ↓

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Ocean Sunfish	Polar bear
Diet	Omnivore	Carnivore
Average Lifespan	10 years	25 years
Average Length	2.7 m	2.4 m
Average Weight	1.0 t	450.0 kg

Habitat & Geographic Range

Ocean Sunfish

Habitat

Typically found in a wide range of habitat types.

Range

Distributed across Australia, Japan, South Africa, and United States. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Polar bear

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

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

Ocean Sunfish

The ocean sunfish is the heaviest known bony fish in the world, weighing up to 2,300 kg.

Polar bear

The largest land carnivore on Earth, polar bears can exceed 700 kg and are found across Arctic sea ice from Canada to Russia. Highly specialized marine mammals that rely on sea ice to hunt ringed and bearded seals. Excellent swimmers capable of covering vast distances in open water. Listed as Vulnerable, with populations under severe pressure from rapid Arctic sea ice loss due to climate change.