Alisan's Salamander vs Laysan Duck

Hynobius arisanensis compared with Anas laysanensis

Key Differences

• Alisan's Salamander is Endangered while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank	Alisan's Salamander	Laysan Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Amphibia (Amphibians)	Aves (Birds)
Order	Caudata (Caudata)	Anseriformes (Anseriformes)
Family	Hynobiidae	Anatidae
Genus	Hynobius	Anas
Species	Hynobius arisanensis	Anas laysanensis

Evolutionary Relationship

Alisan's Salamander and Laysan Duck share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Alisan's Salamander

EN — Endangered

Laysan Duck

CR — Critically Endangered

Physical Characteristics

Attribute	Alisan's Salamander	Laysan Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Alisan's Salamander

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

Found in Taiwan. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its 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.

Alisan's Salamander

The Alisan's Salamander (Hynobius arisanensis) is a species in the genus Hynobius. It is currently classified as Endangered on the IUCN Red List. Typically found in freshwater habitats, moist forests, and wetlands.

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.