Bigeye thresher vs Obscure Drill

Alopias pelagicus compared with Dichrorampha aeratana

Key Differences

• Bigeye thresher is Endangered while Obscure Drill is Least Concern.

Taxonomic Classification

Rank	Bigeye thresher	Obscure Drill
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Chondrichthyes (Cartilaginous Fish)	Insecta (Insects)
Order	Lamniformes (Mackerel Sharks)	Lepidoptera (Butterflies & Moths)
Family	Alopiidae	Tortricidae
Genus	Alopias	Dichrorampha
Species	Alopias pelagicus	Dichrorampha aeratana

Evolutionary Relationship

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

Conservation Status

Bigeye thresher

EN — Endangered

Obscure Drill

LC — Least Concern

Physical Characteristics

Attribute	Bigeye thresher	Obscure Drill
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.

Obscure Drill

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

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