vs Polar bear

Dictyota dichotoma compared with Ursus maritimus

Taxonomic Classification

Rank		Polar bear
Kingdom	Chromista (色藻界)	Animalia (动物界)
Phylum	Ochrophyta (淡色藻门)	Chordata (脊索动物门)
Class	Phaeophyceae (褐藻纲)	Mammalia (哺乳動物)
Order	Dictyotales (网地藻目)	Carnivora (食肉目)
Family	Dictyotaceae	Ursidae (Bears)
Genus	Dictyota	Ursus (Bears)
Species	Dictyota dichotoma	Ursus maritimus

Conservation Status

VU — Vulnerable

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, temperate grasslands and steppes, and flooded grasslands and savannas, among 4 distinct biome types within the Neotropic biogeographic realm.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Argentina, Brazil). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its 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.

Dictyota dichotoma是一种常见褐藻，具有反复二叉分叉的扁平橄榄绿至金褐色藻体，形成宽阔扇形叶状体。生活于全球温带至热带海域的潮间带和浅潮下带岩礁。这种光合作用大型藻类通过固着器附着于岩石，可进行有性和无性繁殖。