American Jack Knife Clam vs Lion

Ensis leei compared with Panthera leo

Key Differences

• American Jack Knife Clam is Not Evaluated while Lion is Vulnerable.

Taxonomic Classification

Rank	American Jack Knife Clam	Lion
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum	Mollusca (มอลลัสกา)	Chordata (สัตว์มีแกนสันหลัง)
Class	Bivalvia (ชั้นไบวาลเวีย)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order	Adapedonta (Adapedonta)	Carnivora (สัตว์กินเนื้อ)
Family	Pharidae	Felidae (Cats)
Genus	Ensis	Panthera (Big Cats)
Species	Ensis leei	Panthera leo

Evolutionary Relationship

American Jack Knife Clam and Lion share a common ancestor at the Kingdom level: Animalia. (สัตว์)

Conservation Status

American Jack Knife Clam

NE — Not Evaluated

Lion

VU — Vulnerable

Population: ~23.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	American Jack Knife Clam	Lion
Diet	—	Carnivore
Average Lifespan	—	15 years
Average Length	—	2.5 m
Average Weight	—	190.0 kg

Habitat & Geographic Range

American Jack Knife Clam

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Found across Europe (6 countries).

Lion

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical grasslands and savannas, and flooded grasslands and savannas, among 7 distinct biome types spanning the Afrotropic and Neotropic and Oceanian realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Colombia, Ecuador, and Kenya. 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.

Lion

The largest wild cat in Africa, lions reach up to 250 kg and are the only social felids, living in prides across sub-Saharan savannas and grasslands. Males are distinguished by their iconic manes. As apex predators, they regulate herbivore populations and maintain ecosystem balance. Listed as Vulnerable due to habitat loss and human-wildlife conflict.