Bordered Screw-moss vs Polar bear

Tortula marginata compared with Ursus maritimus

Key Differences

Bordered Screw-moss is Endangered while Polar bear is Vulnerable.

Taxonomic Classification

Rank	Bordered Screw-moss	Polar bear
Kingdom	Plantae (พืช)	Animalia (สัตว์)
Phylum	Bryophyta	Chordata (สัตว์มีแกนสันหลัง)
Class	Bryopsida (Bryopsida)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order	Pottiales (Pottiales)	Carnivora (สัตว์กินเนื้อ)
Family	Pottiaceae	Ursidae (Bears)
Genus	Tortula	Ursus (Bears)
Species	Tortula marginata	Ursus maritimus

Conservation Status

Bordered Screw-moss

EN — Endangered

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Bordered Screw-moss	Polar bear
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Bordered Screw-moss

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, tundra, and tropical and subtropical moist broadleaf forests spanning the Australasia and Oceanian realms.

Range

Distributed across Belgium, Luxembourg, New Zealand, Norway, and Portugal. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its 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.

Bordered Screw-moss

The Bordered Screw-moss (Tortula marginata) is a species in the genus Tortula. It is currently classified as Endangered on the IUCN Red List. Found across multiple habitat types including temperate broadleaf and mixed forests, tundra, and tropical and subtropical moist broadleaf forests spanning the Australasia and Oceanian realms.

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.