Oso Polar vs Variable-Leaved Crestwort

Ursus maritimus compared with Lophocolea heterophylla

Key Differences

Oso Polar is Vulnerable while Variable-Leaved Crestwort is Least Concern.

Taxonomic Classification

Rank	Oso Polar	Variable-Leaved Crestwort
Kingdom	Animalia (Animals)	Plantae (planta)
Phylum	Chordata (cordados)	Marchantiophyta (liverwort)
Class	Mammalia (mamíferos)	Jungermanniopsida (Jungermanniopsida)
Order	Carnivora (carnívoros)	Jungermanniales (Jungermanniales)
Family	Ursidae (Bears)	Lophocoleaceae
Genus	Ursus (Bears)	Lophocolea
Species	Ursus maritimus	Lophocolea heterophylla

Conservation Status

Oso Polar

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Variable-Leaved Crestwort

LC — Least Concern

Physical Characteristics

Attribute	Oso Polar	Variable-Leaved Crestwort
Diet	Carnivore	—
Average Lifespan	25 years	—
Average Length	2.4 m	—
Average Weight	450.0 kg	—

Habitat & Geographic 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.

Variable-Leaved Crestwort

Habitat

Native to Asia and Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), North America (United States), and South America (Brazil).

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.