Polar bear vs

Ursus maritimus compared with Wahlenbergiella mucosa

Taxonomic Classification

Rank	Polar bear
Kingdom	Animalia (สัตว์)	Fungi (เห็ดรา)
Phylum	Chordata (สัตว์มีแกนสันหลัง)	Ascomycota (Sac Fungi)
Class	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)	Eurotiomycetes (Eurotiomycetes)
Order	Carnivora (สัตว์กินเนื้อ)	Verrucariales (Verrucariales)
Family	Ursidae (Bears)	Verrucariaceae
Genus	Ursus (Bears)	Wahlenbergiella
Species	Ursus maritimus	Wahlenbergiella mucosa

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

VU — Vulnerable

Physical Characteristics

Attribute	Polar bear
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.

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, Sweden, and United States. Currently classified as Vulnerable 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.

Wahlenbergiella mucosa is a lichen-forming fungus assessed as Vulnerable (VU), found in aquatic or semi-aquatic habitats such as submerged rocks in streams. It is sensitive to water quality changes and hydrological alteration, which threaten its restricted range. Its vulnerable status underscores the importance of clean, unpolluted freshwater systems.