Polar bear vs Spoke Pepper-Spore Lichen

Ursus maritimus compared with Rinodina exigua

Key Differences

Polar bear is Vulnerable while Spoke Pepper-Spore Lichen is Least Concern.

Taxonomic Classification

Rank	Polar bear	Spoke Pepper-Spore Lichen
Kingdom	Animalia (động vật)	Fungi (nấm)
Phylum	Chordata (động vật có dây sống)	Ascomycota (Sac Fungi)
Class	Mammalia (lớp Thú)	Lecanoromycetes (Lecanoromycetes)
Order	Carnivora (bộ Ăn thịt)	Caliciales (Caliciales)
Family	Ursidae (Bears)	Physciaceae
Genus	Ursus (Bears)	Rinodina
Species	Ursus maritimus	Rinodina exigua

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Spoke Pepper-Spore Lichen

LC — Least Concern

Physical Characteristics

Attribute	Polar bear	Spoke Pepper-Spore Lichen
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.

Spoke Pepper-Spore Lichen

Habitat

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

Range

Distributed across Denmark, Norway, Portugal, Sweden, and United States.

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.