Polar bear vs

Ursus maritimus compared with Rhizocarpon richardii

Key Differences

Polar bear is Vulnerable while is Least Concern.

Taxonomic Classification

Rank	Polar bear
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (cordados)	Ascomycota (Sac Fungi)
Class	Mammalia (mamíferos)	Lecanoromycetes (Lecanoromycetes)
Order	Carnivora (carnívoros)	Rhizocarpales (Rhizocarpales)
Family	Ursidae (Bears)	Rhizocarpaceae
Genus	Ursus (Bears)	Rhizocarpon
Species	Ursus maritimus	Rhizocarpon richardii

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

LC — Least Concern

Physical Characteristics

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

Habitat & Geographic Range

Polar bear

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.

Habitat

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

Range

Distributed across Denmark, Norway, Sweden, and United States.

Polar bear

O maior carnivoro terrestre da Terra, o urso-polar pode ultrapassar 700 kg e e encontrado pelo gelo marinho artico, do Canada ate a Russia. Mamiferos marinhos altamente especializados que dependem do gelo marinho para cacas de focas e focas-barbadas. Excelentes nadadores capazes de percorrer grandes distancias em aguas abertas. Classificado como Vulneravel, com populacoes sob severa pressao devido a rapida perda de gelo marinho artico causada pelas mudancas climaticas.

Rhizocarpon richardii e um liquen crostoso que forma placas firmemente aderidas a rochas silicosas, exibindo tipicamente um talo cinzento-esverdeado palido a amarelado dividido por um protalo escuro. Habita afloramentos rochosos expostos, faces de penhascos e blocos em zonas montanas e alpinas da Europa e alem. Essa especie saxicola e altamente sensivel a poluicao atmosferica.