Bidentate Yellow-shouldered Bat vs Otter, Fischotter

Sturnira bidens compared with Lutra lutra

Key Differences

• Bidentate Yellow-shouldered Bat is Least Concern while Otter, Fischotter is Vulnerable.

Taxonomic Classification

Rank	Bidentate Yellow-shouldered Bat	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	Phyllostomidae	Mustelidae (Weasels & Otters)
Genus	Sturnira	Lutra (Otters)
Species	Sturnira bidens	Lutra lutra

Evolutionary Relationship

Bidentate Yellow-shouldered Bat and Otter, Fischotter share a common ancestor at the Class level: Mammalia. (Säugetiere)

Conservation Status

Bidentate Yellow-shouldered Bat

LC — Least Concern

Otter, Fischotter

VU — Vulnerable

Trend: Stable →

Physical Characteristics

Attribute	Bidentate Yellow-shouldered Bat	Otter, Fischotter
Diet	—	Carnivore
Average Lifespan	—	10 years
Average Length	—	1.0 m
Average Weight	—	10.0 kg

Habitat & Geographic Range

Bidentate Yellow-shouldered Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.

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.

Bidentate Yellow-shouldered Bat

The Bidentate Yellow-shouldered Bat (Sturnira bidens) is a species in the genus Sturnira. 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.