Amazon River Dolphin vs Large-Neck Clam

Inia geoffrensis compared with Mya arenaria

Key Differences

• Amazon River Dolphin is Data Deficient while Large-Neck Clam is Vulnerable.

Taxonomic Classification

Rank	Amazon River Dolphin	Large-Neck Clam
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Mammalia (Mammals)	Bivalvia (Bivalvia)
Order	Cetacea (Whales & Dolphins)	Myida (Myida)
Family	Iniidae	Myidae
Genus	Inia	Mya
Species	Inia geoffrensis	Mya arenaria

Evolutionary Relationship

Amazon River Dolphin and Large-Neck Clam share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Amazon River Dolphin

DD — Data Deficient

Large-Neck Clam

VU — Vulnerable

Physical Characteristics

Attribute	Amazon River Dolphin	Large-Neck Clam
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amazon River Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.

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.

Amazon River Dolphin

The Amazon River Dolphin (Inia geoffrensis) is a species in the genus Inia. Its conservation status is listed as Data Deficient, indicating insufficient data for assessment. 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.