Blunt-leaved Earwort vs Oso Polar

Diplophyllum obtusifolium compared with Ursus maritimus

Key Differences

Blunt-leaved Earwort is Critically Endangered while Oso Polar is Vulnerable.

Taxonomic Classification

Rank	Blunt-leaved Earwort	Oso Polar
Kingdom	Plantae (planta)	Animalia (Animals)
Phylum	Marchantiophyta (liverwort)	Chordata (cordados)
Class	Jungermanniopsida (Jungermanniopsida)	Mammalia (mamíferos)
Order	Jungermanniales (Jungermanniales)	Carnivora (carnívoros)
Family	Scapaniaceae	Ursidae (Bears)
Genus	Diplophyllum	Ursus (Bears)
Species	Diplophyllum obtusifolium	Ursus maritimus

Conservation Status

Blunt-leaved Earwort

CR — Critically Endangered

Oso Polar

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Blunt-leaved Earwort	Oso Polar
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Blunt-leaved Earwort

Habitat

Inhabits tropical and subtropical moist broadleaf forests and temperate broadleaf and mixed forests spanning the Indomalayan and Palearctic realms.

Range

Found across Asia (Taiwan) and Europe (5 countries). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Blunt-leaved Earwort

The Blunt-leaved Earwort (Diplophyllum obtusifolium) is a species in the genus Diplophyllum. It is currently classified as Critically Endangered on the IUCN Red List. Inhabits tropical and subtropical moist broadleaf forests and temperate broadleaf and mixed forests spanning the Indomalayan and Palearctic realms.

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.