Bigeye thresher vs Shadow Darner

Alopias pelagicus compared with Aeshna umbrosa

Key Differences

• Bigeye thresher is Endangered while Shadow Darner is Least Concern.

Taxonomic Classification

Rank	Bigeye thresher	Shadow Darner
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	Aeshnidae
Genus	Alopias	Aeshna
Species	Alopias pelagicus	Aeshna umbrosa

Evolutionary Relationship

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

Conservation Status

Bigeye thresher

EN — Endangered

Shadow Darner

LC — Least Concern

Physical Characteristics

Attribute	Bigeye thresher	Shadow Darner
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.

Shadow Darner

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found in United States.

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.