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 (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class	Actinopterygii (Ray-finned Fish)	Mammalia (哺乳動物)
Order	Perciformes (鲈形目)	Carnivora (食肉目)
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. (脊索动物门)

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

翻车鱼（Mola mola）是世界上已知最重的硬骨鱼类，体重可达2,300千克。

Polar bear

北极熊是地球上最大的陆地食肉动物，体重可超过700千克，分布于从加拿大到俄罗斯的北极海冰区。是高度特化的海洋哺乳动物，依赖海冰捕猎环斑海豹和髯海豹。是优秀的游泳者，能够横渡广阔的开阔水域。被列为易危种，因气候变化导致北极海冰迅速减少，种群正受到严重威胁。