Polar bear vs

Ursus maritimus compared with Thiothrix annulata

Key Differences

• Polar bear is Vulnerable while is Not Evaluated.

Taxonomic Classification

Rank	Polar bear
Kingdom	Animalia (Animals)	Bacteria (Bacteria)
Phylum	Chordata (cordados)	Proteobacteria (Proteobacteria)
Class	Mammalia (mamíferos)	Gammaproteobacteria (Gammaproteobacteria)
Order	Carnivora (carnívoros)	Thiotrichales (Thiotrichales)
Family	Ursidae (Bears)	Thiotrichaceae
Genus	Ursus (Bears)	Thiothrix
Species	Ursus maritimus	Thiothrix annulata

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

NE — Not Evaluated

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, inhabiting ecosystems characteristic of the region.

Range

Found in 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.

Thiothrix annulata e uma gammaproteobacteria filamentosa oxidadora de enxofre da familia Thiotrichaceae, que forma tricomas com bainhas aderidas a substratos em ambientes aquaticos ricos em sulfeto. Oxida compostos de enxofre reduzido como fonte de energia e armazena granulos de enxofre elementar dentro de suas celulas, dando as colonias uma aparencia esbranquicada. Habita nascentes sulfurosas, sistemas de esgoto e riachos de agua doce com niveis elevados de sulfeto.