Brauner Linien-Blattspanner vs Eisbär

Thera cognata compared with Ursus maritimus

Key Differences

• Brauner Linien-Blattspanner is Least Concern while Eisbär is Vulnerable.

Taxonomic Classification

Rank	Brauner Linien-Blattspanner	Eisbär
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum	Arthropoda (Gliederfüßer)	Chordata (Chordatiere)
Class	Insecta (Insekten)	Mammalia (Säugetiere)
Order	Lepidoptera (Schmetterlinge)	Carnivora (Raubtiere)
Family	Geometridae	Ursidae (Bears)
Genus	Thera	Ursus (Bears)
Species	Thera cognata	Ursus maritimus

Evolutionary Relationship

Brauner Linien-Blattspanner and Eisbär share a common ancestor at the Kingdom level: Animalia. (Tier)

Conservation Status

Brauner Linien-Blattspanner

LC — Least Concern

Eisbär

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Brauner Linien-Blattspanner	Eisbär
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Brauner Linien-Blattspanner

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Eisbär

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.

Brauner Linien-Blattspanner

The Chestnut-coloured Carpet (Thera cognata) is a species in the genus Thera. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Eisbär

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.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway