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 (สัตว์)	Plantae (พืช)
Phylum	Chordata (สัตว์มีแกนสันหลัง)	Tracheophyta
Class	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)	Polypodiopsida (Polypodiopsida)
Order	Carnivora (สัตว์กินเนื้อ)	Ophioglossales (Ophioglossales)
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

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.