floating crystalwort vs Oso Polar

Riccia fluitans compared with Ursus maritimus

Key Differences

• floating crystalwort is Near Threatened while Oso Polar is Vulnerable.

Taxonomic Classification

Rank	floating crystalwort	Oso Polar
Kingdom	Plantae (planta)	Animalia (Animals)
Phylum	Marchantiophyta (liverwort)	Chordata (cordados)
Class	Marchantiopsida (Marchantiopsida)	Mammalia (mamíferos)
Order	Marchantiales (Marchantiales)	Carnivora (carnívoros)
Family	Ricciaceae	Ursidae (Bears)
Genus	Riccia	Ursus (Bears)
Species	Riccia fluitans	Ursus maritimus

Conservation Status

floating crystalwort

NT — Near Threatened

Oso Polar

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

floating crystalwort

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (7 countries), North America (United States), and South America (Chile). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

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