Long-tailed Minute Salamander vs Polar bear

Thorius longicaudus compared with Ursus maritimus

Key Differences

• Long-tailed Minute Salamander is Critically Endangered while Polar bear is Vulnerable.

Taxonomic Classification

Rank	Long-tailed Minute Salamander	Polar bear
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Amphibia (Amphibians)	Mammalia (Mammals)
Order	Caudata (Caudata)	Carnivora (Carnivorans)
Family	Plethodontidae	Ursidae (Bears)
Genus	Thorius	Ursus (Bears)
Species	Thorius longicaudus	Ursus maritimus

Evolutionary Relationship

Long-tailed Minute Salamander and Polar bear share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Long-tailed Minute Salamander

CR — Critically Endangered

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Long-tailed Minute Salamander	Polar bear
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Long-tailed Minute Salamander

Habitat

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

Range

Found in Mexico. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its 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.

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.