Laysan Duck vs Limestone Rainfrog

Anas laysanensis compared with Craugastor psephosypharus

Key Differences

• Laysan Duck is Critically Endangered while Limestone Rainfrog is Near Threatened.

Taxonomic Classification

Rank	Laysan Duck	Limestone Rainfrog
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Amphibia (Amphibians)
Order	Anseriformes (Anseriformes)	Anura (Frogs & Toads)
Family	Anatidae	Craugastoridae
Genus	Anas	Craugastor
Species	Anas laysanensis	Craugastor psephosypharus

Evolutionary Relationship

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

Conservation Status

Laysan Duck

CR — Critically Endangered

Limestone Rainfrog

NT — Near Threatened

Physical Characteristics

Attribute	Laysan Duck	Limestone Rainfrog
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.

Limestone Rainfrog

Habitat

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

Range

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

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.