Large-Neck Clam vs Polyphyllous Globe Thistle

Mya arenaria compared with Echinops foliosus

Taxonomic Classification

Rank	Large-Neck Clam	Polyphyllous Globe Thistle
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Bivalvia (Bivalvia)	Mammalia (Mammals)
Order	Myida (Myida)	Afrosoricida (Afrosoricida)
Family	Myidae	Tenrecidae
Genus	Mya	Echinops
Species	Mya arenaria	Echinops foliosus

Evolutionary Relationship

Large-Neck Clam and Polyphyllous Globe Thistle share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Large-Neck Clam

VU — Vulnerable

Polyphyllous Globe Thistle

VU — Vulnerable

Physical Characteristics

Attribute	Large-Neck Clam	Polyphyllous Globe Thistle
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Large-Neck Clam

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and temperate grasslands and steppes, among 5 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Georgia, Turkey), Europe (22 countries), and North America (Canada, United States). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Polyphyllous Globe Thistle

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Large-Neck Clam

Large-Neck Clam (Mya arenaria) is classified as Vulnerable (VU) on the IUCN Red List. Facing a high risk of endangerment in the wild, with declining populations and increasing habitat pressure.