Broadbacked stingaree vs Laysan Duck

Urolophus expansus compared with Anas laysanensis

Key Differences

• Broadbacked stingaree is Least Concern while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank	Broadbacked stingaree	Laysan Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Aves (Birds)
Order	Myliobatiformes (Myliobatiformes)	Anseriformes (Anseriformes)
Family	Urolophidae	Anatidae
Genus	Urolophus	Anas
Species	Urolophus expansus	Anas laysanensis

Evolutionary Relationship

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

Conservation Status

Broadbacked stingaree

LC — Least Concern

Laysan Duck

CR — Critically Endangered

Physical Characteristics

Attribute	Broadbacked stingaree	Laysan Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Broadbacked stingaree

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.

Broadbacked stingaree

The Broadbacked stingaree (Urolophus expansus) is a species in the genus Urolophus. It is currently classified as Least Concern on the IUCN Red List.

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.