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 (พืช)	Animalia (สัตว์)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (สัตว์มีแกนสันหลัง)
Class	Liliopsida (Monocots)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order	Alismatales (อันดับขาเขียด)	Carnivora (สัตว์กินเนื้อ)
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

The largest land carnivore on Earth, polar bears can exceed 700 kg and are found across Arctic sea ice from Canada to Russia. Highly specialized marine mammals that rely on sea ice to hunt ringed and bearded seals. Excellent swimmers capable of covering vast distances in open water. Listed as Vulnerable, with populations under severe pressure from rapid Arctic sea ice loss due to climate change.