beaked tasselweed vs Polar bear

Ruppia maritima compared with Ursus maritimus

Key Differences

• beaked tasselweed is Extinct while Polar bear is Vulnerable.

Taxonomic Classification

Rank	beaked tasselweed	Polar bear
Kingdom	Plantae (植物)	Animalia (动物界)
Phylum	Magnoliophyta (木兰植物门)	Chordata (脊索动物门)
Class	Liliopsida (百合纲)	Mammalia (哺乳動物)
Order	Alismatales (泽泻目)	Carnivora (食肉目)
Family	Ruppiaceae	Ursidae (Bears)
Genus	Ruppia	Ursus (Bears)
Species	Ruppia maritima	Ursus maritimus

Conservation Status

beaked tasselweed

EX — Extinct

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

beaked tasselweed

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Range

Widely distributed across Asia (Taiwan), Europe (7 countries), North America (Canada), and South America (Brazil, Colombia).

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.

beaked tasselweed

The Beaked tasselweed (Ruppia maritima) is a species in the genus Ruppia. It is currently classified as Extinct on the IUCN Red List. Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Polar bear

北极熊是地球上最大的陆地食肉动物，体重可超过700千克，分布于从加拿大到俄罗斯的北极海冰区。是高度特化的海洋哺乳动物，依赖海冰捕猎环斑海豹和髯海豹。是优秀的游泳者，能够横渡广阔的开阔水域。被列为易危种，因气候变化导致北极海冰迅速减少，种群正受到严重威胁。

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway