Atlantic Stream Crayfish vs Big Brown Bat

Austropotamobius pallipes compared with Eptesicus fuscus

Key Differences

• Atlantic Stream Crayfish is Endangered while Big Brown Bat is Least Concern.

Taxonomic Classification

Rank	Atlantic Stream Crayfish	Big Brown Bat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Malacostraca (Crustaceans)	Mammalia (Mammals)
Order	Decapoda (Decapoda)	Chiroptera (Bats)
Family	Astacidae	Vespertilionidae
Genus	Austropotamobius	Eptesicus
Species	Austropotamobius pallipes	Eptesicus fuscus

Evolutionary Relationship

Atlantic Stream Crayfish and Big Brown Bat share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Atlantic Stream Crayfish

EN — Endangered

Big Brown Bat

LC — Least Concern

Physical Characteristics

Attribute	Atlantic Stream Crayfish	Big Brown Bat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Atlantic Stream Crayfish

Habitat

Inhabits temperate broadleaf and mixed forests and temperate coniferous forests within the Palearctic biogeographic realm.

Range

Distributed across Ireland and United Kingdom. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Big Brown Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

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

Atlantic Stream Crayfish

The Atlantic Stream Crayfish (Austropotamobius pallipes) is a species in the genus Austropotamobius. It is currently classified as Endangered on the IUCN Red List. Inhabits temperate broadleaf and mixed forests and temperate coniferous forests within the Palearctic biogeographic realm.

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.