Polar bear vs Réunion shelduck

Ursus maritimus compared with Alopochen kervazoi

Key Differences

• Polar bear is Vulnerable while Réunion shelduck is Extinct.

Taxonomic Classification

Rank	Polar bear	Réunion shelduck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Mammalia (mamíferos)	Aves (ave)
Order	Carnivora (carnívoros)	Anseriformes (Anseriformes)
Family	Ursidae (Bears)	Anatidae
Genus	Ursus (Bears)	Alopochen
Species	Ursus maritimus	Alopochen kervazoi

Evolutionary Relationship

Polar bear and Réunion shelduck share a common ancestor at the Phylum level: Chordata. (cordados)

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Réunion shelduck

EX — Extinct

Physical Characteristics

Attribute	Polar bear	Réunion shelduck
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.

Réunion shelduck

Habitat

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.