Coelacanth vs Polar bear

Latimeria chalumnae compared with Ursus maritimus

Key Differences

• Coelacanth is Critically Endangered while Polar bear is Vulnerable.
• Polar bear is 5.6x heavier than Coelacanth.
• Coelacanth lives longer (100 years vs 25 years).

Taxonomic Classification

Rank	Coelacanth	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	Coelacanthi (Coelacanthi)	Mammalia (哺乳動物)
Order	Coelacanthiformes (腔棘鱼目)	Carnivora (食肉目)
Family	Latimeriidae	Ursidae (Bears)
Genus	Latimeria	Ursus (Bears)
Species	Latimeria chalumnae	Ursus maritimus

Evolutionary Relationship

Coelacanth and Polar bear share a common ancestor at the Phylum level: Chordata. (脊索动物门)

Conservation Status

Coelacanth

CR — Critically Endangered

Population: ~500

Trend: Decreasing ↓

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Coelacanth	Polar bear
Diet	Carnivore	Carnivore
Average Lifespan	100 years	25 years
Average Length	1.8 m	2.4 m
Average Weight	80.0 kg	450.0 kg

Habitat & Geographic Range

Coelacanth

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

Range

Distributed across Comoros, Indonesia, Mozambique, and South Africa. Currently classified as Critically Endangered 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.

Coelacanth

腔棘鱼在1938年于南非附近海域重新发现之前，被认为已灭绝了6500万年，这种'活化石'可长达2米、重达90千克。它属于比辐鳍鱼类更接近四足动物的古老肉鳍鱼类谱系，对理解脊椎动物进化具有极高的科学价值。栖息于印度洋深水岩礁生境，夜行性，通过体内受精产下完全发育的幼鱼。极危（CR）物种。

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。