Bely Medved vs Siantar Caecilian

Ursus maritimus compared with Ichthyophis paucisulcus

Key Differences

• Bely Medved is Vulnerable while Siantar Caecilian is Least Concern.

Taxonomic Classification

Rank	Bely Medved	Siantar Caecilian
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum same	Chordata (хордовые)	Chordata (хордовые)
Class	Mammalia (млекопитающие)	Amphibia (земноводные)
Order	Carnivora (хищные)	Gymnophiona (безногие земноводные)
Family	Ursidae (Bears)	Ichthyophiidae
Genus	Ursus (Bears)	Ichthyophis
Species	Ursus maritimus	Ichthyophis paucisulcus

Evolutionary Relationship

Bely Medved and Siantar Caecilian share a common ancestor at the Phylum level: Chordata. (хордовые)

Conservation Status

Bely Medved

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Siantar Caecilian

LC — Least Concern

Physical Characteristics

Attribute	Bely Medved	Siantar Caecilian
Diet	Carnivore	—
Average Lifespan	25 years	—
Average Length	2.4 m	—
Average Weight	450.0 kg	—

Habitat & Geographic Range

Bely Medved

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.

Siantar Caecilian

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Bely Medved

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.