Big Brown Bat vs Cuetzalan Salamander

Eptesicus fuscus compared with Aquiloeurycea quetzalanensis

Key Differences

• Big Brown Bat is Least Concern while Cuetzalan Salamander is Critically Endangered.

Taxonomic Classification

Rank	Big Brown Bat	Cuetzalan Salamander
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Amphibia (Amphibians)
Order	Chiroptera (Bats)	Caudata (Caudata)
Family	Vespertilionidae	Plethodontidae
Genus	Eptesicus	Aquiloeurycea
Species	Eptesicus fuscus	Aquiloeurycea quetzalanensis

Evolutionary Relationship

Big Brown Bat and Cuetzalan Salamander share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Big Brown Bat

LC — Least Concern

Cuetzalan Salamander

CR — Critically Endangered

Physical Characteristics

Attribute	Big Brown Bat	Cuetzalan Salamander
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Big Brown Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Belgium, Colombia, Ecuador, United States, and Venezuela.

Cuetzalan Salamander

Habitat

Found across multiple habitat types including tropical and subtropical coniferous forests, tropical and subtropical grasslands and savannas, and Mediterranean forests and woodlands, among 6 distinct biome types spanning the Nearctic and Neotropic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Mexico. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Big Brown Bat

The Big Brown Bat (Eptesicus fuscus) 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.