Eisbär vs Rotrücken-Nonnentyrann

Ursus maritimus compared with Xolmis rubetra

Key Differences

Eisbär is Vulnerable while Rotrücken-Nonnentyrann is Least Concern.

Taxonomic Classification

Rank	Eisbär	Rotrücken-Nonnentyrann
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class	Mammalia (Säugetiere)	Aves (Vögel)
Order	Carnivora (Raubtiere)	Passeriformes (Sperlingsvögel)
Family	Ursidae (Bears)	Tyrannidae
Genus	Ursus (Bears)	Xolmis
Species	Ursus maritimus	Xolmis rubetra

Evolutionary Relationship

Eisbär and Rotrücken-Nonnentyrann share a common ancestor at the Phylum level: Chordata. (Chordatiere)

Ansehen Phylum: Chordata

Conservation Status

Eisbär

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Rotrücken-Nonnentyrann

LC — Least Concern

Physical Characteristics

Attribute	Eisbär	Rotrücken-Nonnentyrann
Diet	Carnivore	—
Average Lifespan	25 years	—
Average Length	2.4 m	—
Average Weight	450.0 kg	—

Habitat & Geographic Range

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.

Rotrücken-Nonnentyrann

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found in Norway.

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.