devil clam vs European otter

Tridacna mbalavuana compared with Lutra lutra

Taxonomic Classification

Rank	devil clam	European otter
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Bivalvia (Bivalvia)	Mammalia (Mammals)
Order	Cardiida (Cardiida)	Carnivora (Carnivorans)
Family	Cardiidae	Mustelidae (Weasels & Otters)
Genus	Tridacna	Lutra (Otters)
Species	Tridacna mbalavuana	Lutra lutra

Evolutionary Relationship

devil clam and European otter share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

devil clam

VU — Vulnerable

European otter

VU — Vulnerable

Trend: Stable →

Physical Characteristics

Attribute	devil clam	European otter
Diet	—	Carnivore
Average Lifespan	—	10 years
Average Length	—	1.0 m
Average Weight	—	10.0 kg

Habitat & Geographic Range

devil clam

European otter

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

Found across Europe (6 countries). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

European otter

Sleek semi-aquatic mustelid found along clean rivers, streams, and coastlines across Europe and Asia. European otters can reach 1.3 meters in length and are highly skilled fish hunters, using sensitive whiskers to detect prey movements. Requiring unpolluted water with abundant fish, they are an indicator species for freshwater ecosystem health. Once nearly extinct in Western Europe from hunting and pollution, populations have recovered significantly following water quality improvements.