Black-winged Little Yellow Bat vs European otter

Rhogeessa tumida compared with Lutra lutra

Key Differences

• Black-winged Little Yellow Bat is Least Concern while European otter is Vulnerable.

Taxonomic Classification

Rank	Black-winged Little Yellow Bat	European otter
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Chiroptera (Bats)	Carnivora (Carnivorans)
Family	Vespertilionidae	Mustelidae (Weasels & Otters)
Genus	Rhogeessa	Lutra (Otters)
Species	Rhogeessa tumida	Lutra lutra

Evolutionary Relationship

Black-winged Little Yellow Bat and European otter share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Black-winged Little Yellow Bat

LC — Least Concern

European otter

VU — Vulnerable

Trend: Stable →

Physical Characteristics

Attribute	Black-winged Little Yellow Bat	European otter
Diet	—	Carnivore
Average Lifespan	—	10 years
Average Length	—	1.0 m
Average Weight	—	10.0 kg

Habitat & Geographic Range

Black-winged Little Yellow Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

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.

Black-winged Little Yellow Bat

The Black-winged Little Yellow Bat (Rhogeessa tumida) is a species in the genus Rhogeessa. It is currently classified as Least Concern on the IUCN Red List. Found in Colombia.

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.