Polar bear vs Short-tail lantern shark

Ursus maritimus compared with Etmopterus brachyurus

Key Differences

• Polar bear is Vulnerable while Short-tail lantern shark is Data Deficient.

Taxonomic Classification

Rank	Polar bear	Short-tail lantern shark
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Mammalia (mamíferos)	Elasmobranchii
Order	Carnivora (carnívoros)	Squaliformes (Squaliformes)
Family	Ursidae (Bears)	Etmopteridae
Genus	Ursus (Bears)	Etmopterus
Species	Ursus maritimus	Etmopterus brachyurus

Evolutionary Relationship

Polar bear and Short-tail lantern shark share a common ancestor at the Phylum level: Chordata. (cordados)

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Short-tail lantern shark

DD — Data Deficient

Physical Characteristics

Attribute	Polar bear	Short-tail lantern shark
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.

Short-tail lantern shark

Habitat

Native to Asia and South America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Chile and Taiwan.

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.