Polar bear vs White-bellied Woodstar

Ursus maritimus compared with Chaetocercus mulsant

Key Differences

• Polar bear is Vulnerable while White-bellied Woodstar is Least Concern.

Taxonomic Classification

Rank	Polar bear	White-bellied Woodstar
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Mammalia (mamíferos)	Aves (ave)
Order	Carnivora (carnívoros)	Apodiformes (Apodiformes)
Family	Ursidae (Bears)	Trochilidae
Genus	Ursus (Bears)	Chaetocercus
Species	Ursus maritimus	Chaetocercus mulsant

Evolutionary Relationship

Polar bear and White-bellied Woodstar share a common ancestor at the Phylum level: Chordata. (cordados)

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

White-bellied Woodstar

LC — Least Concern

Physical Characteristics

Attribute	Polar bear	White-bellied Woodstar
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.

White-bellied Woodstar

Habitat

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

Range

Distributed across Colombia, Ecuador, and Norway.

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.

White-bellied Woodstar

O beija-flor estrela-de-barriga-branca (Chaetocercus mulsant) é um dos beija-flores mais diminutos, com machos pesando apenas 2,5 g. Habita os Andes e vales interandinos da Colômbia até a Bolívia, entre 1.500 e 3.500 metros de altitude. Os machos exibem uma vistosa gorjeira amatista-púrpura e barriga branca com flancos verdes. Apesar do tamanho minúsculo, são agressivos e altamente manobráveis, entrando em torpor noturno para conservar energia no frio andino.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway