European otter vs Guinea pig

Lutra lutra compared with Cavia porcellus

Key Differences

European otter is Vulnerable while Guinea pig is Least Concern.

Taxonomic Classification

Rank	European otter	Guinea pig
Kingdom same	Animalia (hayvan)	Animalia (hayvan)
Phylum same	Chordata (Kordalılar)	Chordata (Kordalılar)
Class same	Mammalia (memeliler)	Mammalia (memeliler)
Order	Carnivora (etçiller)	Rodentia (kemiriciler)
Family	Mustelidae (Weasels & Otters)	Caviidae
Genus	Lutra (Otters)	Cavia
Species	Lutra lutra	Cavia porcellus

Evolutionary Relationship

European otter and Guinea pig share a common ancestor at the Class level: Mammalia. (memeliler)

Göster Class: Mammalia

Conservation Status

European otter

VU — Vulnerable

Trend: Stable →

Guinea pig

LC — Least Concern

Physical Characteristics

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

Habitat & Geographic Range

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.

Guinea pig

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Widely distributed across Europe (6 countries), North America (Cuba), Oceania and the Pacific (Australia), and South America (Colombia, Ecuador).

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.