Amami Brown Frog vs Polar bear

Rana kobai compared with Ursus maritimus

Key Differences

• Amami Brown Frog is Near Threatened while Polar bear is Vulnerable.

Taxonomic Classification

Rank	Amami Brown Frog	Polar bear
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class	Amphibia (สัตว์สะเทินน้ำสะเทินบก)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order	Anura (อันดับกบ)	Carnivora (สัตว์กินเนื้อ)
Family	Ranidae	Ursidae (Bears)
Genus	Rana	Ursus (Bears)
Species	Rana kobai	Ursus maritimus

Evolutionary Relationship

Amami Brown Frog and Polar bear share a common ancestor at the Phylum level: Chordata. (สัตว์มีแกนสันหลัง)

Conservation Status

Amami Brown Frog

NT — Near Threatened

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Amami Brown Frog	Polar bear
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Amami Brown Frog

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.

Amami Brown Frog

The Amami Brown Frog (Rana kobai) is a species in the genus Rana. It is currently classified as Near Threatened on the IUCN Red List. Typically found in freshwater habitats, moist forests, and wetlands.

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.