Dusky Cockroach vs Laysan Duck

Ectobius lapponicus compared with Anas laysanensis

Key Differences

• Dusky Cockroach is Not Evaluated while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank	Dusky Cockroach	Laysan Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Aves (Birds)
Order	Blattodea (Blattodea)	Anseriformes (Anseriformes)
Family	Ectobiidae	Anatidae
Genus	Ectobius	Anas
Species	Ectobius lapponicus	Anas laysanensis

Evolutionary Relationship

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

Conservation Status

Dusky Cockroach

NE — Not Evaluated

Laysan Duck

CR — Critically Endangered

Physical Characteristics

Attribute	Dusky Cockroach	Laysan Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Dusky Cockroach

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States.

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.

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