Polar bear vs Pygmy three-toed sloth

Ursus maritimus compared with Bradypus pygmaeus

Key Differences

Polar bear is Vulnerable while Pygmy three-toed sloth is Critically Endangered.

Taxonomic Classification

Rank	Polar bear	Pygmy three-toed sloth
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Carnivora (Carnivorans)	Pilosa (Sloths & Anteaters)
Family	Ursidae (Bears)	Bradypodidae (Three-toed Sloths)
Genus	Ursus (Bears)	Bradypus (Three-toed Sloths)
Species	Ursus maritimus	Bradypus pygmaeus

Evolutionary Relationship

Polar bear and Pygmy three-toed sloth share a common ancestor at the Class level: Mammalia. (Mammals)

View Class: Mammalia

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Pygmy three-toed sloth

CR — Critically Endangered

Physical Characteristics

Attribute	Polar bear	Pygmy three-toed sloth
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.

Pygmy three-toed sloth

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.