Brown egg frog vs Laysan Duck

Ctenophryne geayi compared with Anas laysanensis

Key Differences

• Brown egg frog is Least Concern while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank	Brown egg frog	Laysan Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Amphibia (Amphibians)	Aves (Birds)
Order	Anura (Frogs & Toads)	Anseriformes (Anseriformes)
Family	Microhylidae	Anatidae
Genus	Ctenophryne	Anas
Species	Ctenophryne geayi	Anas laysanensis

Evolutionary Relationship

Brown egg frog and Laysan Duck share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Brown egg frog

LC — Least Concern

Laysan Duck

CR — Critically Endangered

Physical Characteristics

Attribute	Brown egg frog	Laysan Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown egg frog

Habitat

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

Range

Found in Venezuela.

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.

Brown egg frog

The Brown Egg Frog (Ctenophryne geayi) is a species in the genus Ctenophryne. 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.