European otter vs Medog Spiny Frog

Lutra lutra compared with Nanorana medogensis

Key Differences

• European otter is Vulnerable while Medog Spiny Frog is Endangered.

Taxonomic Classification

Rank	European otter	Medog Spiny Frog
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Amphibia (Amphibians)
Order	Carnivora (Carnivorans)	Anura (Frogs & Toads)
Family	Mustelidae (Weasels & Otters)	Dicroglossidae
Genus	Lutra (Otters)	Nanorana
Species	Lutra lutra	Nanorana medogensis

Evolutionary Relationship

European otter and Medog Spiny Frog share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

European otter

VU — Vulnerable

Trend: Stable →

Medog Spiny Frog

EN — Endangered

Physical Characteristics

Attribute	European otter	Medog Spiny Frog
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.

Medog Spiny Frog

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

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.