Arctic Tern vs Broadgill Catshark

Sterna paradisaea compared with Apristurus riveri

Taxonomic Classification

Rank	Arctic Tern	Broadgill Catshark
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Chondrichthyes (Cartilaginous Fish)
Order	Charadriiformes (Charadriiformes)	Carcharhiniformes (Ground Sharks)
Family	Laridae	Scyliorhinidae
Genus	Sterna	Apristurus
Species	Sterna paradisaea	Apristurus riveri

Evolutionary Relationship

Arctic Tern and Broadgill Catshark share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Arctic Tern

LC — Least Concern

Broadgill Catshark

LC — Least Concern

Physical Characteristics

Attribute	Arctic Tern	Broadgill Catshark
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arctic Tern

Habitat

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

Range

Widely distributed across Europe (4 countries), North America (United States), and South America (Colombia, Ecuador).

Broadgill Catshark

Habitat

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

Range

Found in Venezuela.

Arctic Tern

Arctic Tern (Sterna paradisaea) 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.

Broadgill Catshark

The Broadgill Catshark (Apristurus riveri) 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.