European otter vs Oakleaf Cup

Lutra lutra compared with Rutstroemia sydowiana

Key Differences

European otter is Vulnerable while Oakleaf Cup is Not Evaluated.

Taxonomic Classification

Rank	European otter	Oakleaf Cup
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Ascomycota (Sac Fungi)
Class	Mammalia (Mammals)	Leotiomycetes (Leotiomycetes)
Order	Carnivora (Carnivorans)	Helotiales (Helotiales)
Family	Mustelidae (Weasels & Otters)	Rutstroemiaceae
Genus	Lutra (Otters)	Rutstroemia
Species	Lutra lutra	Rutstroemia sydowiana

Conservation Status

European otter

VU — Vulnerable

Trend: Stable →

Oakleaf Cup

NE — Not Evaluated

Physical Characteristics

Attribute	European otter	Oakleaf Cup
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.

Oakleaf Cup

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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.