Polar bear vs Small Adder's-Tongue

Ursus maritimus compared with Ophioglossum azoricum

Key Differences

Polar bear is Vulnerable while Small Adder's-Tongue is Critically Endangered.

Taxonomic Classification

Rank	Polar bear	Small Adder's-Tongue
Kingdom	Animalia (動物)	Plantae (植物)
Phylum	Chordata (脊索動物)	Tracheophyta
Class	Mammalia (哺乳類)	Polypodiopsida (ウラボシ綱)
Order	Carnivora (ネコ目)	Ophioglossales (ハナヤスリ目)
Family	Ursidae (Bears)	Ophioglossaceae
Genus	Ursus (Bears)	Ophioglossum
Species	Ursus maritimus	Ophioglossum azoricum

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Small Adder's-Tongue

CR — Critically Endangered

Physical Characteristics

Attribute	Polar bear	Small Adder's-Tongue
Diet	Carnivore	—
Average Lifespan	25 years	—
Average Length	2.4 m	—
Average Weight	450.0 kg	—

Habitat & Geographic 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.

Small Adder's-Tongue

Habitat

Inhabits boreal forests and taiga within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Belgium, Iceland, Norway, Portugal, and Sweden. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Polar bear

地球上で最大の陸上肉食動物であるホッキョクグマは700kgを超えることがあり、カナダからロシアまでの北極海氷域全体に分布する。ワモンアザラシとヒゲアザラシを狩るために海氷に依存する高度に特化した海洋哺乳類である。広大な距離を泳ぐことができる優れた泳者でもある。脆弱種に指定されており、気候変動による急激な北極海氷の消失で個体群が深刻な圧力を受けている。