European otter vs Pine Crust

Lutra lutra compared with Peniophora pini

Key Differences

European otter is Vulnerable while Pine Crust is Least Concern.

Taxonomic Classification

Rank	European otter	Pine Crust
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Basidiomycota (Club Fungi)
Class	Mammalia (Mammals)	Agaricomycetes (Mushrooms)
Order	Carnivora (Carnivorans)	Russulales (Russulales)
Family	Mustelidae (Weasels & Otters)	Peniophoraceae
Genus	Lutra (Otters)	Peniophora
Species	Lutra lutra	Peniophora pini

Conservation Status

European otter

VU — Vulnerable

Trend: Stable →

Pine Crust

LC — Least Concern

Physical Characteristics

Attribute	European otter	Pine Crust
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.

Pine Crust

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across 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.