Laysan Duck vs Sparsetooth dogfish

Anas laysanensis compared with Scymnodalatias oligodon

Key Differences

• Laysan Duck is Critically Endangered while Sparsetooth dogfish is Least Concern.

Taxonomic Classification

Rank	Laysan Duck	Sparsetooth dogfish
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Elasmobranchii
Order	Anseriformes (Anseriformes)	Squaliformes (Squaliformes)
Family	Anatidae	Somniosidae
Genus	Anas	Scymnodalatias
Species	Anas laysanensis	Scymnodalatias oligodon

Evolutionary Relationship

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

Conservation Status

Laysan Duck

CR — Critically Endangered

Sparsetooth dogfish

LC — Least Concern

Physical Characteristics

Attribute	Laysan Duck	Sparsetooth dogfish
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.

Sparsetooth dogfish

Habitat

Native to South America, inhabiting ecosystems characteristic of the region.

Range

Found in Chile.

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.