Polar bear vs Rayed Earthstar

Ursus maritimus compared with Geastrum quadrifidum

Key Differences

Polar bear is Vulnerable while Rayed Earthstar is Extinct.

Taxonomic Classification

Rank	Polar bear	Rayed Earthstar
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (cordados)	Basidiomycota (Club Fungi)
Class	Mammalia (mamíferos)	Agaricomycetes (Mushrooms)
Order	Carnivora (carnívoros)	Geastrales (Geastrales)
Family	Ursidae (Bears)	Geastraceae
Genus	Ursus (Bears)	Geastrum
Species	Ursus maritimus	Geastrum quadrifidum

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Rayed Earthstar

EX — Extinct

Physical Characteristics

Attribute	Polar bear	Rayed Earthstar
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.

Rayed Earthstar

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Belgium, Norway, and Sweden.

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.