Bigeye thresher vs Gray-headed Flying Fox

Alopias pelagicus compared with Pteropus poliocephalus

Key Differences

• Bigeye thresher is Endangered while Gray-headed Flying Fox is Vulnerable.

Taxonomic Classification

Rank	Bigeye thresher	Gray-headed Flying Fox
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	Pteropodidae (Fruit Bats)
Genus	Alopias	Pteropus (Flying Foxes)
Species	Alopias pelagicus	Pteropus poliocephalus

Evolutionary Relationship

Bigeye thresher and Gray-headed Flying Fox share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Bigeye thresher

EN — Endangered

Gray-headed Flying Fox

VU — Vulnerable

Physical Characteristics

Attribute	Bigeye thresher	Gray-headed Flying Fox
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.

Gray-headed Flying Fox

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.