Bell's False Brook Salamander vs Laysan Duck

Isthmura bellii compared with Anas laysanensis

Key Differences

• Bell's False Brook Salamander is Least Concern while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank	Bell's False Brook 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	Plethodontidae	Anatidae
Genus	Isthmura	Anas
Species	Isthmura bellii	Anas laysanensis

Evolutionary Relationship

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

Conservation Status

Bell's False Brook Salamander

LC — Least Concern

Laysan Duck

CR — Critically Endangered

Physical Characteristics

Attribute	Bell's False Brook Salamander	Laysan Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bell's False Brook Salamander

Habitat

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

Range

Found in Mexico.

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.

Bell's False Brook Salamander

The Bell's False Brook Salamander (Isthmura bellii) is a species in the genus Isthmura. It is currently classified as Least Concern 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.