Bigeye thresher vs Common Blue Damselfly

Alopias pelagicus compared with Enallagma cyathigerum

Key Differences

• Bigeye thresher is Endangered while Common Blue Damselfly is Least Concern.

Taxonomic Classification

Rank	Bigeye thresher	Common Blue Damselfly
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Chondrichthyes (Cartilaginous Fish)	Insecta (Insects)
Order	Lamniformes (Mackerel Sharks)	Odonata (Odonata)
Family	Alopiidae	Coenagrionidae
Genus	Alopias	Enallagma
Species	Alopias pelagicus	Enallagma cyathigerum

Evolutionary Relationship

Bigeye thresher and Common Blue Damselfly share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Bigeye thresher

EN — Endangered

Common Blue Damselfly

LC — Least Concern

Physical Characteristics

Attribute	Bigeye thresher	Common Blue Damselfly
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.

Common Blue Damselfly

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Luxembourg, Norway, and Sweden.

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.

Common Blue Damselfly

Common Blue Damselfly (Enallagma cyathigerum) 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.