American Jack Knife Clam vs Bely Medved

Ensis leei compared with Ursus maritimus

Key Differences

• American Jack Knife Clam is Not Evaluated while Bely Medved is Vulnerable.

Taxonomic Classification

Rank	American Jack Knife Clam	Bely Medved
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum	Mollusca (моллюски)	Chordata (хордовые)
Class	Bivalvia (двустворчатые)	Mammalia (млекопитающие)
Order	Adapedonta (Adapedonta)	Carnivora (хищные)
Family	Pharidae	Ursidae (Bears)
Genus	Ensis	Ursus (Bears)
Species	Ensis leei	Ursus maritimus

Evolutionary Relationship

American Jack Knife Clam and Bely Medved share a common ancestor at the Kingdom level: Animalia. (животные)

Conservation Status

American Jack Knife Clam

NE — Not Evaluated

Bely Medved

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	American Jack Knife Clam	Bely Medved
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).

Bely Medved

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.

Bely Medved

The largest land carnivore on Earth, polar bears can exceed 700 kg and are found across Arctic sea ice from Canada to Russia. Highly specialized marine mammals that rely on sea ice to hunt ringed and bearded seals. Excellent swimmers capable of covering vast distances in open water. Listed as Vulnerable, with populations under severe pressure from rapid Arctic sea ice loss due to climate change.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway