Black-and-chestnut Eagle vs Polar bear

Spizaetus isidori compared with Ursus maritimus

Taxonomic Classification

Rank	Black-and-chestnut Eagle	Polar bear
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Accipitriformes (Hawks & Eagles)	Carnivora (Carnivorans)
Family	Accipitridae (Hawks & Eagles)	Ursidae (Bears)
Genus	Spizaetus	Ursus (Bears)
Species	Spizaetus isidori	Ursus maritimus

Evolutionary Relationship

Black-and-chestnut Eagle and Polar bear share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Black-and-chestnut Eagle

VU — Vulnerable

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Black-and-chestnut Eagle	Polar bear
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Black-and-chestnut Eagle

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela. Currently classified as Vulnerable 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.

Black-and-chestnut Eagle

Black-and-chestnut Eagle (Spizaetus isidori) is classified as Vulnerable (VU) on the IUCN Red List. Facing a high risk of endangerment in the wild, with declining populations and increasing habitat pressure.

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.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway