Polar bear vs

Ursus maritimus compared with Pseudo-nitzschia pungens

Key Differences

Polar bear is Vulnerable while is Not Evaluated.

Taxonomic Classification

Rank	Polar bear
Kingdom	Animalia (Animals)	Chromista (Chromista)
Phylum	Chordata (cordados)	Ochrophyta (Ochrophyta)
Class	Mammalia (mamíferos)	Bacillariophyceae (Bacillariophyceae)
Order	Carnivora (carnívoros)	Bacillariales (Bacillariales)
Family	Ursidae (Bears)	Bacillariaceae
Genus	Ursus (Bears)	Pseudo-nitzschia
Species	Ursus maritimus	Pseudo-nitzschia pungens

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

Range

Widely distributed across Asia (Oman, Taiwan), Europe (Denmark, Norway, Sweden), North America (Mexico), and South America (Brazil).

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.

Pseudo-nitzschia pungens e uma diatomacea marinha formadora de cadeias com celulas em forma de agulha que se interligam em longas cadeias semelhantes a escadas. Habita ambientes planctonicos costeiros e oceanicos abertos em todo o mundo em aguas temperadas a frias. Esta diatomacea fotossintetica pode produzir a neurotoxina acido domoico e participa em eventos de floracao de algas nocivas.