Bigeye thresher vs Isabelle's Serotine

Alopias pelagicus compared with Eptesicus isabellinus

Key Differences

• Bigeye thresher is Endangered while Isabelle's Serotine is Least Concern.

Taxonomic Classification

Rank	Bigeye thresher	Isabelle's Serotine
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Mammalia (Mammals)
Order	Lamniformes (Mackerel Sharks)	Chiroptera (Bats)
Family	Alopiidae	Vespertilionidae
Genus	Alopias	Eptesicus
Species	Alopias pelagicus	Eptesicus isabellinus

Evolutionary Relationship

Bigeye thresher and Isabelle's Serotine share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Bigeye thresher

EN — Endangered

Isabelle's Serotine

LC — Least Concern

Physical Characteristics

Attribute	Bigeye thresher	Isabelle's Serotine
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

Isabelle's Serotine

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.