Polar bear vs

Ursus maritimus compared with Sclerotinia borealis

Key Differences

Polar bear is Vulnerable while is Least Concern.

Taxonomic Classification

Rank	Polar bear
Kingdom	Animalia (สัตว์)	Fungi (เห็ดรา)
Phylum	Chordata (สัตว์มีแกนสันหลัง)	Ascomycota (Sac Fungi)
Class	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)	Leotiomycetes (Leotiomycetes)
Order	Carnivora (สัตว์กินเนื้อ)	Helotiales (Helotiales)
Family	Ursidae (Bears)	Sclerotiniaceae
Genus	Ursus (Bears)	Sclerotinia
Species	Ursus maritimus	Sclerotinia borealis

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

LC — Least Concern

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, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

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.

Sclerotinia borealis is a fungal pathogen in the family Sclerotiniaceae that causes snow mold disease on grasses and small grain cereals in cold climates. It develops at temperatures just above freezing under persistent snow cover, forming characteristic black sclerotia that persist in soil between seasons. It is assessed as Least Concern by conservation assessors.