Polar bear vs Siberian brown lemming
Ursus maritimus compared with Lemmus sibiricus
Key Differences
- Polar bear is Vulnerable while Siberian brown lemming is Least Concern.
Taxonomic Classification
| Rank | Polar bear | Siberian brown lemming |
|---|---|---|
| Kingdom same | Animalia (Animals) | Animalia (Animals) |
| Phylum same | Chordata (cordados) | Chordata (cordados) |
| Class same | Mammalia (mamíferos) | Mammalia (mamíferos) |
| Order | Carnivora (carnívoros) | Rodentia (Roedores) |
| Family | Ursidae (Bears) | Cricetidae |
| Genus | Ursus (Bears) | Lemmus |
| Species | Ursus maritimus | Lemmus sibiricus |
Evolutionary Relationship
Polar bear and Siberian brown lemming share a common ancestor at the Class level: Mammalia. (mamíferos)
Conservation Status
Polar bear
VU — VulnerablePopulation: ~26.0K
Trend: Decreasing ↓
Siberian brown lemming
LC — Least ConcernPhysical Characteristics
| Attribute | Polar bear | Siberian brown lemming |
|---|---|---|
| Diet | Carnivore | — |
| Average Lifespan | 25 years | — |
| Average Length | 2.4 m | — |
| Average Weight | 450.0 kg | — |
Habitat & Geographic Range
Polar bear
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.
Found in Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.
Siberian brown lemming
Typically found in diverse terrestrial and aquatic ecosystems.
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.
Siberian brown lemming
No description available.
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