brown ribbon worm vs Oso Polar

Cerebratulus fuscus compared with Ursus maritimus

Key Differences

• brown ribbon worm is Not Evaluated while Oso Polar is Vulnerable.

Taxonomic Classification

Rank	brown ribbon worm	Oso Polar
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Nemertea (Nemertea)	Chordata (cordados)
Class	Pilidiophora (Pilidiophora)	Mammalia (mamíferos)
Order	Heteronemertea (Heteronemertea)	Carnivora (carnívoros)
Family	Lineidae	Ursidae (Bears)
Genus	Cerebratulus	Ursus (Bears)
Species	Cerebratulus fuscus	Ursus maritimus

Evolutionary Relationship

brown ribbon worm and Oso Polar share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

brown ribbon worm

NE — Not Evaluated

Oso Polar

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	brown ribbon worm	Oso Polar
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

brown ribbon worm

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

Oso Polar

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.

brown ribbon worm

The Brown Ribbon Worm (Cerebratulus fuscus) is a species in the genus Cerebratulus. Native to Europe, inhabiting ecosystems characteristic of the region. Distributed across Norway and Sweden. As a member of the Cerebratulus genus, this species contributes to biodiversity in its native range.

Oso Polar

El mayor carnivoro terrestre de la Tierra, el oso polar puede superar los 700 kg y se encuentra en el hielo marino del Artico, desde Canada hasta Rusia. Es un mamifero marino altamente especializado que depende del hielo marino para cazar focas anilladas y barbadas. Excelente nadador capaz de cubrir grandes distancias en agua abierta. Clasificado como Vulnerable, sus poblaciones soportan una presion severa por la rapida perdida de hielo marino artico debida al cambio climatico.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway