Challenger skate vs Red-billed Duck

Rajella challengeri compared with Anas erythrorhyncha

Taxonomic Classification

Rank	Challenger skate	Red-billed Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Aves (Birds)
Order	Rajiformes (Rajiformes)	Anseriformes (Anseriformes)
Family	Rajidae	Anatidae
Genus	Rajella	Anas
Species	Rajella challengeri	Anas erythrorhyncha

Evolutionary Relationship

Challenger skate and Red-billed Duck share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Challenger skate

LC — Least Concern

Red-billed Duck

LC — Least Concern

Physical Characteristics

Attribute	Challenger skate	Red-billed Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Challenger skate

Red-billed Duck

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found across Europe (6 countries) and South America (Ecuador).

Challenger skate

The Challenger skate (Rajella challengeri) is a species in the genus Rajella. It is currently classified as Least Concern on the IUCN Red List.

Red-billed Duck

Red-billed Duck (Anas erythrorhyncha) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.