Banana-tail ray vs Oso Polar

Pastinachus sephen compared with Ursus maritimus

Key Differences

• Banana-tail ray is Near Threatened while Oso Polar is Vulnerable.

Taxonomic Classification

Rank	Banana-tail ray	Oso Polar
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Elasmobranchii	Mammalia (mamíferos)
Order	Myliobatiformes (Myliobatiformes)	Carnivora (carnívoros)
Family	Dasyatidae	Ursidae (Bears)
Genus	Pastinachus	Ursus (Bears)
Species	Pastinachus sephen	Ursus maritimus

Evolutionary Relationship

Banana-tail ray and Oso Polar share a common ancestor at the Phylum level: Chordata. (cordados)

Conservation Status

Banana-tail ray

NT — Near Threatened

Oso Polar

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Banana-tail ray	Oso Polar
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Banana-tail ray

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.

Banana-tail ray

The Banana-tail ray (Pastinachus sephen) is a species in the genus Pastinachus. It is currently classified as Near Threatened on the IUCN Red List.

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.