Indian Ocean humpback dolphin vs Laysan Duck

Sousa plumbea compared with Anas laysanensis

Key Differences

• Indian Ocean humpback dolphin is Endangered while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank	Indian Ocean humpback dolphin	Laysan Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Cetacea (Whales & Dolphins)	Anseriformes (Anseriformes)
Family	Delphinidae (Oceanic Dolphins)	Anatidae
Genus	Sousa	Anas
Species	Sousa plumbea	Anas laysanensis

Evolutionary Relationship

Indian Ocean humpback dolphin and Laysan Duck share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Indian Ocean humpback dolphin

EN — Endangered

Laysan Duck

CR — Critically Endangered

Physical Characteristics

Attribute	Indian Ocean humpback dolphin	Laysan Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Indian Ocean humpback dolphin

Habitat

Inhabits temperate broadleaf and mixed forests and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Greece. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its 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.

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.