Gascoyne Quillwort vs Polar bear

Isoetes boryana compared with Ursus maritimus

Key Differences

• Gascoyne Quillwort is Endangered while Polar bear is Vulnerable.

Taxonomic Classification

Rank	Gascoyne Quillwort	Polar bear
Kingdom	Plantae (พืช)	Animalia (สัตว์)
Phylum	Tracheophyta	Chordata (สัตว์มีแกนสันหลัง)
Class	Lycopodiopsida (Lycopodiopsida)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order	Isoetales (Isoetales)	Carnivora (สัตว์กินเนื้อ)
Family	Isoetaceae	Ursidae (Bears)
Genus	Isoetes	Ursus (Bears)
Species	Isoetes boryana	Ursus maritimus

Conservation Status

Gascoyne Quillwort

EN — Endangered

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

Gascoyne Quillwort

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.

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.