arran brown vs Bigeye thresher

Erebia ligea compared with Alopias pelagicus

Key Differences

• arran brown is Least Concern while Bigeye thresher is Endangered.

Taxonomic Classification

Rank	arran brown	Bigeye thresher
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Chondrichthyes (Cartilaginous Fish)
Order	Lepidoptera (Butterflies & Moths)	Lamniformes (Mackerel Sharks)
Family	Nymphalidae (Brush-footed Butterflies)	Alopiidae
Genus	Erebia	Alopias
Species	Erebia ligea	Alopias pelagicus

Evolutionary Relationship

arran brown and Bigeye thresher share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

arran brown

LC — Least Concern

Bigeye thresher

EN — Endangered

Physical Characteristics

Attribute	arran brown	Bigeye thresher
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

arran brown

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (33 countries).

Bigeye thresher

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Range

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

arran brown

arran brown (Erebia ligea) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Bigeye thresher

The Bigeye thresher (Alopias pelagicus) is a species in the genus Alopias. It is currently classified as Endangered on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.