Bare-legged Swiftlet vs Polar bear

Aerodramus nuditarsus compared with Ursus maritimus

Key Differences

• Bare-legged Swiftlet is Least Concern while Polar bear is Vulnerable.

Taxonomic Classification

Rank	Bare-legged Swiftlet	Polar bear
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Aves (ave)	Mammalia (mamíferos)
Order	Apodiformes (Apodiformes)	Carnivora (carnívoros)
Family	Apodidae	Ursidae (Bears)
Genus	Aerodramus	Ursus (Bears)
Species	Aerodramus nuditarsus	Ursus maritimus

Evolutionary Relationship

Bare-legged Swiftlet and Polar bear share a common ancestor at the Phylum level: Chordata. (cordados)

Conservation Status

Bare-legged Swiftlet

LC — Least Concern

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Bare-legged Swiftlet	Polar bear
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Bare-legged Swiftlet

Habitat

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

Range

Found in Norway.

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.

Bare-legged Swiftlet

The Bare-legged Swiftlet (Aerodramus nuditarsus) is a species in the genus Aerodramus. It is currently classified as Least Concern on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

Polar bear

O maior carnivoro terrestre da Terra, o urso-polar pode ultrapassar 700 kg e e encontrado pelo gelo marinho artico, do Canada ate a Russia. Mamiferos marinhos altamente especializados que dependem do gelo marinho para cacas de focas e focas-barbadas. Excelentes nadadores capazes de percorrer grandes distancias em aguas abertas. Classificado como Vulneravel, com populacoes sob severa pressao devido a rapida perda de gelo marinho artico causada pelas mudancas climaticas.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway