卢氏臭蛙 vs Polar bear

Odorrana chloronota compared with Ursus maritimus

Key Differences

• 卢氏臭蛙 is Least Concern while Polar bear is Vulnerable.

Taxonomic Classification

Rank	卢氏臭蛙	Polar bear
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class	Amphibia (两栖动物)	Mammalia (哺乳動物)
Order	Anura (无尾目)	Carnivora (食肉目)
Family	Ranidae	Ursidae (Bears)
Genus	Odorrana	Ursus (Bears)
Species	Odorrana chloronota	Ursus maritimus

Evolutionary Relationship

卢氏臭蛙 and Polar bear share a common ancestor at the Phylum level: Chordata. (脊索动物门)

Conservation Status

卢氏臭蛙

LC — Least Concern

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

卢氏臭蛙

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

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.

卢氏臭蛙

The Chloronate Huia Frog (Odorrana chloronota) is a medium-sized ranid frog in the family Ranidae, occurring in the subtropical and tropical forests of southern and southeastern China, Vietnam, Laos, and adjacent Southeast Asia. It belongs to the genus Odorrana, a diverse group of frogs characterised by the presence of odorous skin secretions — the name derives from the distinctive smell produced by their granular dorsal glands, which may serve a defensive function. The chloronate huia frog inhabits fast-flowing rocky streams in hilly and montane forest, where both adults and tadpoles are adapted to strong currents. Tadpoles often possess an oral sucker-like disc enabling them to adhere to smooth rock surfaces in torrent conditions. Adults are typically found perched on rocks or riparian vegetation near streams, and like many stream-dwelling Odorrana, breeding is closely tied to the seasonal pattern of stream flow and rainfall. The species is insectivorous, taking a range of invertebrates encountered near its stream habitat. The IUCN classifies the Chloronate Huia Frog as Least Concern, with a broad range and no indication of rapid population decline. Ongoing threats within its range include deforestation, stream degradation, and emerging infectious diseases such as chytridiomycosis that affect ranid frogs globally.

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。