Choco Yellow-shouldered Bat vs Grosse Tümmler, Grosstümmler

Sturnira koopmanhilli compared with Tursiops truncatus

Key Differences

• Choco Yellow-shouldered Bat is Data Deficient while Grosse Tümmler, Grosstümmler is Least Concern.

Taxonomic Classification

Rank	Choco Yellow-shouldered Bat	Grosse Tümmler, Grosstümmler
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class same	Mammalia (Säugetiere)	Mammalia (Säugetiere)
Order	Chiroptera (Fledertiere)	Cetacea (Whales & Dolphins)
Family	Phyllostomidae	Delphinidae (Oceanic Dolphins)
Genus	Sturnira	Tursiops (Bottlenose Dolphins)
Species	Sturnira koopmanhilli	Tursiops truncatus

Evolutionary Relationship

Choco Yellow-shouldered Bat and Grosse Tümmler, Grosstümmler share a common ancestor at the Class level: Mammalia. (Säugetiere)

Conservation Status

Choco Yellow-shouldered Bat

DD — Data Deficient

Grosse Tümmler, Grosstümmler

LC — Least Concern

Population: ~600.0K

Trend: Stable →

Physical Characteristics

Attribute	Choco Yellow-shouldered Bat	Grosse Tümmler, Grosstümmler
Diet	—	Carnivore
Average Lifespan	—	45 years
Average Length	—	3.0 m
Average Weight	—	300.0 kg

Habitat & Geographic Range

Choco Yellow-shouldered Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Ecuador.

Grosse Tümmler, Grosstümmler

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 12 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), and South America (Colombia, Ecuador, Venezuela).

Choco Yellow-shouldered Bat

The Choco Yellow-shouldered Bat (Sturnira koopmanhilli) is a medium-sized frugivorous bat in the family Phyllostomidae, endemic to the Chocó biogeographic region of northwestern South America, where it occurs in the humid forests of the Pacific slope of Colombia and adjacent Ecuador. It belongs to the genus Sturnira — the yellow-shouldered bats — characterised by males bearing distinctive yellowish, orange, or reddish shoulder glands (from which the group's name derives), robust bodies, and rounded ears. Like all Sturnira, this species is primarily frugivorous, consuming a wide range of small, soft fruits from pioneer and forest trees, and plays an important role as a seed disperser in disturbed forest patches and forest edges. The diet of Solanaceae (nightshade family) fruits is particularly typical of the genus, and Sturnira bats are considered the primary dispersers of many pioneer Solanum species in Neotropical secondary succession, contributing directly to forest regeneration. The IUCN classifies the Choco Yellow-shouldered Bat as Data Deficient, reflecting significant uncertainty about the species' distribution limits, population size, and ecological requirements. The Chocó region continues to experience rapid deforestation, which threatens frugivorous bat diversity even where individual species lack adequate data for formal threat assessment.

Grosse Tümmler, Grosstümmler

The most studied and recognized dolphin species, bottlenose dolphins inhabit warm and temperate oceans worldwide, from coastal shallows to the open sea. Highly intelligent with large brains relative to body size, they demonstrate self-recognition, complex communication, and social learning. They live in fluid fission-fusion societies and cooperate to herd fish. A keystone indicator species for marine ecosystem health.

Shared Countries

Both species can be found in 2 countries:

🇨🇴 Colombia 🇪🇨 Ecuador