Broadnose cat shark vs Crested Shelduck

Apristurus investigatoris compared with Tadorna cristata

Key Differences

• Broadnose cat shark is Least Concern while Crested Shelduck is Critically Endangered.

Taxonomic Classification

Rank	Broadnose cat shark	Crested Shelduck
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	Apristurus	Tadorna
Species	Apristurus investigatoris	Tadorna cristata

Evolutionary Relationship

Broadnose cat shark and Crested Shelduck share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Broadnose cat shark

LC — Least Concern

Crested Shelduck

CR — Critically Endangered

Physical Characteristics

Attribute	Broadnose cat shark	Crested Shelduck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Broadnose cat shark

Habitat

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

Crested Shelduck

Habitat

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

Range

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

Broadnose cat shark

The Broadnose Cat Shark (Apristurus investigatoris) is a species in the genus Apristurus. It is currently classified as Least Concern on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.