Butterfly ray vs Laysan Duck

Gymnura altavela compared with Anas laysanensis

Key Differences

• Butterfly ray is Endangered while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank	Butterfly ray	Laysan Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Aves (Birds)
Order	Myliobatiformes (Myliobatiformes)	Anseriformes (Anseriformes)
Family	Gymnuridae	Anatidae
Genus	Gymnura	Anas
Species	Gymnura altavela	Anas laysanensis

Evolutionary Relationship

Butterfly ray and Laysan Duck share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Butterfly ray

EN — Endangered

Laysan Duck

CR — Critically Endangered

Physical Characteristics

Attribute	Butterfly ray	Laysan Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Butterfly ray

Habitat

Native to South America, inhabiting ecosystems characteristic of the region.

Range

Found in Venezuela. 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.

Butterfly ray

The Butterfly ray (Gymnura altavela) is a species in the genus Gymnura. It is currently classified as Endangered on the IUCN Red List. Native to South America, inhabiting ecosystems characteristic of the region.

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.