Bog Hoverfly vs Eisbär

Eristalis cryptarum compared with Ursus maritimus

Key Differences

Bog Hoverfly is Extinct while Eisbär is Vulnerable.

Taxonomic Classification

Rank	Bog Hoverfly	Eisbär
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum	Arthropoda (Gliederfüßer)	Chordata (Chordatiere)
Class	Insecta (Insekten)	Mammalia (Säugetiere)
Order	Diptera (Zweiflügler)	Carnivora (Raubtiere)
Family	Syrphidae	Ursidae (Bears)
Genus	Eristalis	Ursus (Bears)
Species	Eristalis cryptarum	Ursus maritimus

Evolutionary Relationship

Bog Hoverfly and Eisbär share a common ancestor at the Kingdom level: Animalia. (Tier)

Ansehen Kingdom: Animalia

Conservation Status

Bog Hoverfly

EX — Extinct

Eisbär

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Bog Hoverfly	Eisbär
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Bog Hoverfly

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.

Bog Hoverfly

The Bog Hoverfly (Eristalis cryptarum) is a species in the genus Eristalis. It is currently classified as Extinct on the IUCN Red List. Distributed across Belgium, Denmark, Norway, and Sweden.

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.