Silbón overo vs Oso Polar

Mareca sibilatrix compared with Ursus maritimus

Key Differences

• Silbón overo is Not Evaluated while Oso Polar is Vulnerable.

Taxonomic Classification

Rank	Silbón overo	Oso Polar
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Aves (Birds)	Mammalia (mamíferos)
Order	Anseriformes (Anseriformes)	Carnivora (carnívoros)
Family	Anatidae	Ursidae (Bears)
Genus	Mareca	Ursus (Bears)
Species	Mareca sibilatrix	Ursus maritimus

Evolutionary Relationship

Silbón overo and Oso Polar share a common ancestor at the Phylum level: Chordata. (cordados)

Conservation Status

Silbón overo

NE — Not Evaluated

Oso Polar

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Silbón overo	Oso Polar
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Silbón overo

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Belgium, Denmark, 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.

Silbón overo

The Chiloe Wigeon (Mareca sibilatrix) is a species in the genus Mareca. Typically found in various aerial, terrestrial, and aquatic environments.

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