Polar bear vs sibling yoldia

Ursus maritimus compared with Yoldiella nana

Taxonomic Classification

Rank	Polar bear	sibling yoldia
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum	Chordata (สัตว์มีแกนสันหลัง)	Mollusca (มอลลัสกา)
Class	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)	Bivalvia (ชั้นไบวาลเวีย)
Order	Carnivora (สัตว์กินเนื้อ)	Nuculanida (Nuculanida)
Family	Ursidae (Bears)	Yoldiidae
Genus	Ursus (Bears)	Yoldiella
Species	Ursus maritimus	Yoldiella nana

Evolutionary Relationship

Polar bear and sibling yoldia share a common ancestor at the Kingdom level: Animalia. (สัตว์)

ดู: Kingdom: Animalia

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

sibling yoldia

VU — Vulnerable

Physical Characteristics

Attribute	Polar bear	sibling yoldia
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.

sibling yoldia

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden. 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.