Cat shark vs Red-billed Duck

Bythaelurus canescens compared with Anas erythrorhyncha

Key Differences

• Cat shark is Vulnerable while Red-billed Duck is Least Concern.

Taxonomic Classification

Rank	Cat shark	Red-billed Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Aves (Birds)
Order	Carcharhiniformes (Ground Sharks)	Anseriformes (Anseriformes)
Family	Scyliorhinidae	Anatidae
Genus	Bythaelurus	Anas
Species	Bythaelurus canescens	Anas erythrorhyncha

Evolutionary Relationship

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

Conservation Status

Cat shark

VU — Vulnerable

Red-billed Duck

LC — Least Concern

Physical Characteristics

Attribute	Cat shark	Red-billed Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Cat shark

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Range

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

Red-billed Duck

Habitat

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

Range

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

Cat shark

The Cat shark (Bythaelurus canescens) is a species in the genus Bythaelurus. It is currently classified as Vulnerable on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.

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.