Atunero vs Oso Polar

Isurus oxyrinchus compared with Ursus maritimus

Key Differences

Atunero is Not Evaluated while Oso Polar is Vulnerable.

Taxonomic Classification

Rank	Atunero	Oso Polar
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Chondrichthyes (Cartilaginous Fish)	Mammalia (mamíferos)
Order	Lamniformes (Mackerel Sharks)	Carnivora (carnívoros)
Family	Lamnidae (Mackerel Sharks)	Ursidae (Bears)
Genus	Isurus	Ursus (Bears)
Species	Isurus oxyrinchus	Ursus maritimus

Evolutionary Relationship

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

Vista Phylum: Chordata

Conservation Status

Atunero

NE — Not Evaluated

Oso Polar

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

Atunero

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Range

Widely distributed across Asia (Taiwan), Europe (Denmark, Norway, Portugal), and South America (Chile, Venezuela).

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.

Atunero

The Atlantic mako (Isurus oxyrinchus) is a species in the genus Isurus. Typically found in marine environments from coastal waters to deep ocean.

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.