Laysan Duck vs tiny risso snail

Anas laysanensis compared with Rissoa parva

Key Differences

• Laysan Duck is Critically Endangered while tiny risso snail is Least Concern.

Taxonomic Classification

Rank	Laysan Duck	tiny risso snail
Kingdom same	Animalia (hayvan)	Animalia (hayvan)
Phylum	Chordata (Kordalılar)	Mollusca (Yumuşakçalar)
Class	Aves (kuş)	Gastropoda (Karından bacaklılar)
Order	Anseriformes (Kazsılar)	Littorinimorpha (Littorinimorpha)
Family	Anatidae	Rissoidae
Genus	Anas	Rissoa
Species	Anas laysanensis	Rissoa parva

Evolutionary Relationship

Laysan Duck and tiny risso snail share a common ancestor at the Kingdom level: Animalia. (hayvan)

Conservation Status

Laysan Duck

CR — Critically Endangered

tiny risso snail

LC — Least Concern

Physical Characteristics

Attribute	Laysan Duck	tiny risso snail
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.

tiny risso snail

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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.

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇳🇴 Norway