Dunkler Zitterrochen vs Eisbär

Tetronarce nobiliana compared with Ursus maritimus

Key Differences

• Dunkler Zitterrochen is Not Evaluated while Eisbär is Vulnerable.

Taxonomic Classification

Rank	Dunkler Zitterrochen	Eisbär
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class	Elasmobranchii	Mammalia (Säugetiere)
Order	Torpediniformes (Zitterrochenartige)	Carnivora (Raubtiere)
Family	Torpedinidae	Ursidae (Bears)
Genus	Tetronarce	Ursus (Bears)
Species	Tetronarce nobiliana	Ursus maritimus

Evolutionary Relationship

Dunkler Zitterrochen and Eisbär share a common ancestor at the Phylum level: Chordata. (Chordatiere)

Conservation Status

Dunkler Zitterrochen

NE — Not Evaluated

Eisbär

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Dunkler Zitterrochen	Eisbär
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Dunkler Zitterrochen

Habitat

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

Range

Distributed across Denmark, Norway, and Venezuela.

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.

Dunkler Zitterrochen

The Atlantic Electric Ray (Tetronarce nobiliana) is a species in the genus Tetronarce. Native to Europe and South America, inhabiting ecosystems characteristic of the region.

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