Guam Flying Fox vs River Tern

Pteropus tokudae compared with Sterna aurantia

Key Differences

• Guam Flying Fox is Extinct while River Tern is Vulnerable.

Taxonomic Classification

Rank	Guam Flying Fox	River Tern
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Chiroptera (Bats)	Charadriiformes (Charadriiformes)
Family	Pteropodidae (Fruit Bats)	Laridae
Genus	Pteropus (Flying Foxes)	Sterna
Species	Pteropus tokudae	Sterna aurantia

Evolutionary Relationship

Guam Flying Fox and River Tern share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Guam Flying Fox

EX — Extinct

River Tern

VU — Vulnerable

Physical Characteristics

Attribute	Guam Flying Fox	River Tern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Guam Flying Fox

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

River Tern

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found in Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.