Bigeye thresher vs White-shouldered Ibis

Alopias pelagicus compared with Pseudibis davisoni

Key Differences

• Bigeye thresher is Endangered while White-shouldered Ibis is Critically Endangered.

Taxonomic Classification

Rank	Bigeye thresher	White-shouldered Ibis
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Aves (Birds)
Order	Lamniformes (Mackerel Sharks)	Pelecaniformes (Pelecaniformes)
Family	Alopiidae	Threskiornithidae
Genus	Alopias	Pseudibis
Species	Alopias pelagicus	Pseudibis davisoni

Evolutionary Relationship

Bigeye thresher and White-shouldered Ibis share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Bigeye thresher

EN — Endangered

White-shouldered Ibis

CR — Critically Endangered

Physical Characteristics

Attribute	Bigeye thresher	White-shouldered Ibis
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.

White-shouldered Ibis

Habitat

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

Range

Found in Norway. 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.