Bigeye thresher vs Narrow-headed Slender Opossum

Alopias pelagicus compared with Marmosops cracens

Key Differences

• Bigeye thresher is Endangered while Narrow-headed Slender Opossum is Data Deficient.

Taxonomic Classification

Rank	Bigeye thresher	Narrow-headed Slender Opossum
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Mammalia (Mammals)
Order	Lamniformes (Mackerel Sharks)	Didelphimorphia (Didelphimorphia)
Family	Alopiidae	Didelphidae
Genus	Alopias	Marmosops
Species	Alopias pelagicus	Marmosops cracens

Evolutionary Relationship

Bigeye thresher and Narrow-headed Slender Opossum share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Bigeye thresher

EN — Endangered

Narrow-headed Slender Opossum

DD — Data Deficient

Physical Characteristics

Attribute	Bigeye thresher	Narrow-headed Slender Opossum
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.

Narrow-headed Slender Opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Venezuela.

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.