Laysan Duck vs Rough ray

Anas laysanensis compared with Raja radula

Key Differences

• Laysan Duck is Critically Endangered while Rough ray is Endangered.

Taxonomic Classification

Rank	Laysan Duck	Rough ray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Elasmobranchii
Order	Anseriformes (Anseriformes)	Rajiformes (Rajiformes)
Family	Anatidae	Rajidae
Genus	Anas	Raja
Species	Anas laysanensis	Raja radula

Evolutionary Relationship

Laysan Duck and Rough ray share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Laysan Duck

CR — Critically Endangered

Rough ray

EN — Endangered

Physical Characteristics

Attribute	Laysan Duck	Rough ray
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Laysan Duck

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Belgium, France, Netherlands, Norway, and United Kingdom. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Rough ray

Laysan Duck

Laysan Duck (Anas laysanensis) is classified as Critically Endangered (CR) on the IUCN Red List. Facing an extremely high risk of extinction in the wild due to severe population decline and habitat loss.