Heath Threadwort vs Polar bear

Cephaloziella stellulifera compared with Ursus maritimus

Key Differences

• Heath Threadwort is Data Deficient while Polar bear is Vulnerable.

Taxonomic Classification

Rank	Heath Threadwort	Polar bear
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Marchantiophyta (liverwort)	Chordata (Chordates)
Class	Jungermanniopsida (Jungermanniopsida)	Mammalia (Mammals)
Order	Jungermanniales (Jungermanniales)	Carnivora (Carnivorans)
Family	Cephaloziellaceae	Ursidae (Bears)
Genus	Cephaloziella	Ursus (Bears)
Species	Cephaloziella stellulifera	Ursus maritimus

Conservation Status

Heath Threadwort

DD — Data Deficient

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Heath Threadwort	Polar bear
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Heath Threadwort

Habitat

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

Range

Distributed across Sweden and United States.

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.

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.