Big Brown Bat vs

Eptesicus fuscus compared with Nitzschia flexa

Key Differences

• Big Brown Bat is Least Concern while is Not Evaluated.

Taxonomic Classification

Rank	Big Brown Bat
Kingdom	Animalia (животные)	Chromista (хромисты)
Phylum	Chordata (хордовые)	Ochrophyta (охрофитовые водоросли)
Class	Mammalia (млекопитающие)	Bacillariophyceae (Bacillariophyceae)
Order	Chiroptera (рукокрылые)	Bacillariales (Bacillariales)
Family	Vespertilionidae	Bacillariaceae
Genus	Eptesicus	Nitzschia
Species	Eptesicus fuscus	Nitzschia flexa

Conservation Status

Big Brown Bat

LC — Least Concern

NE — Not Evaluated

Physical Characteristics

Attribute	Big Brown Bat
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.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

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.

Nitzschia flexa is a pennate diatom (class Bacillariophyceae) with a characteristically curved or bent raphe system that gives the genus its distinctive appearance. It inhabits freshwater to brackish environments and contributes to benthic and planktonic algal communities. As a photosynthetic microalga, it plays a foundational role in aquatic food webs and primary production.