American Jack Knife Clam vs Polar bear

Ensis leei compared with Ursus maritimus

Key Differences

• American Jack Knife Clam is Not Evaluated while Polar bear is Vulnerable.

Taxonomic Classification

Rank	American Jack Knife Clam	Polar bear
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Moluscos)	Chordata (cordados)
Class	Bivalvia (Bivalvia)	Mammalia (mamíferos)
Order	Adapedonta (Adapedonta)	Carnivora (carnívoros)
Family	Pharidae	Ursidae (Bears)
Genus	Ensis	Ursus (Bears)
Species	Ensis leei	Ursus maritimus

Evolutionary Relationship

American Jack Knife Clam and Polar bear share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

American Jack Knife Clam

NE — Not Evaluated

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	American Jack Knife Clam	Polar bear
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

American Jack Knife Clam

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Found across Europe (6 countries).

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.

American Jack Knife Clam

The American Jack Knife Clam (Ensis leei) is a species in the genus Ensis. Native to Europe, inhabiting ecosystems characteristic of the region.

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