Bottas Fledermaus vs Otter, Fischotter

Eptesicus bottae compared with Lutra lutra

Key Differences

• Bottas Fledermaus is Least Concern while Otter, Fischotter is Vulnerable.

Taxonomic Classification

Rank	Bottas Fledermaus	Otter, Fischotter
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class same	Mammalia (Säugetiere)	Mammalia (Säugetiere)
Order	Chiroptera (Fledertiere)	Carnivora (Raubtiere)
Family	Vespertilionidae	Mustelidae (Weasels & Otters)
Genus	Eptesicus	Lutra (Otters)
Species	Eptesicus bottae	Lutra lutra

Evolutionary Relationship

Bottas Fledermaus and Otter, Fischotter share a common ancestor at the Class level: Mammalia. (Säugetiere)

Conservation Status

Bottas Fledermaus

LC — Least Concern

Otter, Fischotter

VU — Vulnerable

Trend: Stable →

Physical Characteristics

Attribute	Bottas Fledermaus	Otter, Fischotter
Diet	—	Carnivore
Average Lifespan	—	10 years
Average Length	—	1.0 m
Average Weight	—	10.0 kg

Habitat & Geographic Range

Bottas Fledermaus

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Otter, Fischotter

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.

Bottas Fledermaus

The Botta's Serotine (Eptesicus bottae) is a species in the genus Eptesicus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Otter, Fischotter

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.