Bent-grass nematode vs Eisbär

Anguina agrostis compared with Ursus maritimus

Key Differences

• Bent-grass nematode is Not Evaluated while Eisbär is Vulnerable.

Taxonomic Classification

Rank	Bent-grass nematode	Eisbär
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum	Nematoda (Fadenwürmer)	Chordata (Chordatiere)
Class	Chromadorea (Chromadorea)	Mammalia (Säugetiere)
Order	Rhabditida (Rhabditida)	Carnivora (Raubtiere)
Family	Anguinidae	Ursidae (Bears)
Genus	Anguina	Ursus (Bears)
Species	Anguina agrostis	Ursus maritimus

Evolutionary Relationship

Bent-grass nematode and Eisbär share a common ancestor at the Kingdom level: Animalia. (Tier)

Conservation Status

Bent-grass nematode

NE — Not Evaluated

Eisbär

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Bent-grass nematode	Eisbär
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Bent-grass nematode

Habitat

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

Range

Distributed across China, Denmark, and United States.

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.

Bent-grass nematode

The Bent-grass nematode (Anguina agrostis) is a species in the genus Anguina. Native to Asia and Europe and North 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.