Bigeye thresher vs Williamson's Emerald

Alopias pelagicus compared with Somatochlora williamsoni

Key Differences

• Bigeye thresher is Endangered while Williamson's Emerald is Least Concern.

Taxonomic Classification

Rank	Bigeye thresher	Williamson's Emerald
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	Corduliidae
Genus	Alopias	Somatochlora
Species	Alopias pelagicus	Somatochlora williamsoni

Evolutionary Relationship

Bigeye thresher and Williamson's Emerald share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Bigeye thresher

EN — Endangered

Williamson's Emerald

LC — Least Concern

Physical Characteristics

Attribute	Bigeye thresher	Williamson's Emerald
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.

Williamson's Emerald

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.