Bigeye thresher vs Smooth hound

Alopias pelagicus compared with Triakis maculata

Key Differences

• Bigeye thresher is Endangered while Smooth hound is Critically Endangered.

Taxonomic Classification

Rank	Bigeye thresher	Smooth hound
Kingdom same	Animalia (hayvan)	Animalia (hayvan)
Phylum same	Chordata (Kordalılar)	Chordata (Kordalılar)
Class same	Chondrichthyes (Kıkırdaklı balıklar)	Chondrichthyes (Kıkırdaklı balıklar)
Order	Lamniformes (Dik burunlular)	Carcharhiniformes (Ground Sharks)
Family	Alopiidae	Triakidae
Genus	Alopias	Triakis
Species	Alopias pelagicus	Triakis maculata

Evolutionary Relationship

Bigeye thresher and Smooth hound share a common ancestor at the Class level: Chondrichthyes. (Kıkırdaklı balıklar)

Conservation Status

Bigeye thresher

EN — Endangered

Smooth hound

CR — Critically Endangered

Physical Characteristics

Attribute	Bigeye thresher	Smooth hound
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.

Smooth hound

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate grasslands and steppes, and montane grasslands and shrublands, among 5 distinct biome types within the Neotropic biogeographic realm.

Range

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

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.