Bigtail skate vs Laysan Duck

Dipturus macrocauda compared with Anas laysanensis

Key Differences

Bigtail skate is Near Threatened while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank	Bigtail skate	Laysan Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Aves (Birds)
Order	Rajiformes (Rajiformes)	Anseriformes (Anseriformes)
Family	Rajidae	Anatidae
Genus	Dipturus	Anas
Species	Dipturus macrocauda	Anas laysanensis

Evolutionary Relationship

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

View Phylum: Chordata

Conservation Status

Bigtail skate

NT — Near Threatened

Laysan Duck

CR — Critically Endangered

Physical Characteristics

Attribute	Bigtail skate	Laysan Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bigtail skate

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

Found in Taiwan. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Bigtail skate

The Bigtail skate (Dipturus macrocauda) is a species in the genus Dipturus. It is currently classified as Near Threatened on the IUCN Red List. Native to Asia, inhabiting ecosystems characteristic of the region.

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.