Bigeye thresher vs Black shark

Alopias pelagicus compared with Etmopterus granulosus

Key Differences

• Bigeye thresher is Endangered while Black shark is Least Concern.

Taxonomic Classification

Rank	Bigeye thresher	Black shark
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Elasmobranchii
Order	Lamniformes (Mackerel Sharks)	Squaliformes (Squaliformes)
Family	Alopiidae	Etmopteridae
Genus	Alopias	Etmopterus
Species	Alopias pelagicus	Etmopterus granulosus

Evolutionary Relationship

Bigeye thresher and Black shark share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Bigeye thresher

EN — Endangered

Black shark

LC — Least Concern

Physical Characteristics

Attribute	Bigeye thresher	Black shark
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.

Black shark

Habitat

Native to South America, inhabiting ecosystems characteristic of the region.

Range

Found in Chile.

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.

Black shark

The Black shark (Etmopterus granulosus) is a species in the genus Etmopterus. It is currently classified as Least Concern on the IUCN Red List. Native to South America, inhabiting ecosystems characteristic of the region.