brown slug vs Laysan Duck

Deroceras laeve compared with Anas laysanensis

Key Differences

• brown slug is Least Concern while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank	brown slug	Laysan Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Gastropoda (Gastropoda)	Aves (Birds)
Order	Stylommatophora (Stylommatophora)	Anseriformes (Anseriformes)
Family	Agriolimacidae	Anatidae
Genus	Deroceras	Anas
Species	Deroceras laeve	Anas laysanensis

Evolutionary Relationship

brown slug and Laysan Duck share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

brown slug

LC — Least Concern

Laysan Duck

CR — Critically Endangered

Physical Characteristics

Attribute	brown slug	Laysan Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

brown slug

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, tropical and subtropical moist broadleaf forests, and temperate broadleaf and mixed forests, among 7 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (Cabo Verde, Sao Tome and Principe, South Africa), Asia (4 countries), Europe (9 countries), North America (Guatemala, Mexico, United States), Oceania and the Pacific (New Zealand), and South America (5 countries).

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 slug

The Brown Slug (Deroceras laeve) is a species in the genus Deroceras. It is currently classified as Least Concern on the IUCN Red List. Found across multiple habitat types including tropical and subtropical dry broadleaf forests, tropical and subtropical moist broadleaf forests, and temperate broadleaf and mixed forests, among 7 distinct biome types. Populations are also fo

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 3 countries:

🇧🇪 Belgium 🇫🇷 France 🇳🇴 Norway