Bigeye thresher vs Napo Saki

Alopias pelagicus compared with Pithecia napensis

Key Differences

• Bigeye thresher is Endangered while Napo Saki is Least Concern.

Taxonomic Classification

Rank	Bigeye thresher	Napo Saki
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Mammalia (Mammals)
Order	Lamniformes (Mackerel Sharks)	Primates (Primates)
Family	Alopiidae	Pitheciidae
Genus	Alopias	Pithecia
Species	Alopias pelagicus	Pithecia napensis

Evolutionary Relationship

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

Conservation Status

Bigeye thresher

EN — Endangered

Napo Saki

LC — Least Concern

Physical Characteristics

Attribute	Bigeye thresher	Napo Saki
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.

Napo Saki

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador.

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.