Polar bear vs singlesorus island spleenwort

Ursus maritimus compared with Asplenium unisorum

Key Differences

• Polar bear is Vulnerable while singlesorus island spleenwort is Critically Endangered.

Taxonomic Classification

Rank	Polar bear	singlesorus island spleenwort
Kingdom	Animalia (حيوانات)	Plantae (نباتات)
Phylum	Chordata (حبليات)	Tracheophyta
Class	Mammalia (ثدييات)	Polypodiopsida (سراخس رقيقة المباغ)
Order	Carnivora (لواحم)	Polypodiales (سرخسيات)
Family	Ursidae (Bears)	Aspleniaceae
Genus	Ursus (Bears)	Asplenium
Species	Ursus maritimus	Asplenium unisorum

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

singlesorus island spleenwort

CR — Critically Endangered

Physical Characteristics

Attribute	Polar bear	singlesorus island spleenwort
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.

singlesorus island spleenwort

Habitat

Typically found in moist, shaded forest floors and tropical canopies.

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.