Chalk Screw-moss vs Bely Medved

Tortula vahliana compared with Ursus maritimus

Taxonomic Classification

Rank	Chalk Screw-moss	Bely Medved
Kingdom	Plantae (растения)	Animalia (животные)
Phylum	Bryophyta	Chordata (хордовые)
Class	Bryopsida (листостебельные мхи)	Mammalia (млекопитающие)
Order	Pottiales (поттиевые)	Carnivora (хищные)
Family	Pottiaceae	Ursidae (Bears)
Genus	Tortula	Ursus (Bears)
Species	Tortula vahliana	Ursus maritimus

Conservation Status

Chalk Screw-moss

VU — Vulnerable

Bely Medved

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Chalk Screw-moss	Bely Medved
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Chalk Screw-moss

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Norway, and Portugal. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Bely Medved

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.

Chalk Screw-moss

The Chalk Screw-moss (Tortula vahliana) is a species in the genus Tortula. It is currently classified as Vulnerable on the IUCN Red List. Native to Europe, inhabiting ecosystems characteristic of the region.

Bely Medved

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.