Bigeye thresher vs Falcated Duck

Alopias pelagicus compared with Mareca falcata

Key Differences

• Bigeye thresher is Endangered while Falcated Duck is Not Evaluated.

Taxonomic Classification

Rank	Bigeye thresher	Falcated Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Aves (Birds)
Order	Lamniformes (Mackerel Sharks)	Anseriformes (Anseriformes)
Family	Alopiidae	Anatidae
Genus	Alopias	Mareca
Species	Alopias pelagicus	Mareca falcata

Evolutionary Relationship

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

Conservation Status

Bigeye thresher

EN — Endangered

Falcated Duck

NE — Not Evaluated

Physical Characteristics

Attribute	Bigeye thresher	Falcated Duck
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.

Falcated Duck

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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.