Pygmy three-toed sloth vs smooth giant clam

Bradypus pygmaeus compared with Tridacna derasa

Key Differences

• Pygmy three-toed sloth is Critically Endangered while smooth giant clam is Vulnerable.

Taxonomic Classification

Rank	Pygmy three-toed sloth	smooth giant clam
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Mammalia (Mammals)	Bivalvia (Bivalvia)
Order	Pilosa (Sloths & Anteaters)	Cardiida (Cardiida)
Family	Bradypodidae (Three-toed Sloths)	Cardiidae
Genus	Bradypus (Three-toed Sloths)	Tridacna
Species	Bradypus pygmaeus	Tridacna derasa

Evolutionary Relationship

Pygmy three-toed sloth and smooth giant clam share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Pygmy three-toed sloth

CR — Critically Endangered

smooth giant clam

VU — Vulnerable

Physical Characteristics

Attribute	Pygmy three-toed sloth	smooth giant clam
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Pygmy three-toed sloth

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

smooth giant clam

Habitat

Inhabits tropical and subtropical moist broadleaf forests within the Oceanian biogeographic realm.

Range

Distributed across Marshall Islands and Taiwan. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.