Aratathomas's Yellow-shouldered Bat vs European otter

Sturnira aratathomasi compared with Lutra lutra

Key Differences

• Aratathomas's Yellow-shouldered Bat is Near Threatened while European otter is Vulnerable.

Taxonomic Classification

Rank	Aratathomas's Yellow-shouldered 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	Phyllostomidae	Mustelidae (Weasels & Otters)
Genus	Sturnira	Lutra (Otters)
Species	Sturnira aratathomasi	Lutra lutra

Evolutionary Relationship

Aratathomas's Yellow-shouldered Bat and European otter share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Aratathomas's Yellow-shouldered Bat

NT — Near Threatened

European otter

VU — Vulnerable

Trend: Stable →

Physical Characteristics

Attribute	Aratathomas's Yellow-shouldered Bat	European otter
Diet	—	Carnivore
Average Lifespan	—	10 years
Average Length	—	1.0 m
Average Weight	—	10.0 kg

Habitat & Geographic Range

Aratathomas's Yellow-shouldered Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Aratathomas's Yellow-shouldered Bat

The Aratathomas's Yellow-shouldered Bat (Sturnira aratathomasi) is a species in the genus Sturnira. It is currently classified as Near Threatened on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

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.