Brown catshark vs Epaulard

Bythaelurus lutarius compared with Orcinus orca

Taxonomic Classification

Rank	Brown catshark	Epaulard
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Mammalia (Mammals)
Order	Carcharhiniformes (Ground Sharks)	Cetacea (Whales & Dolphins)
Family	Scyliorhinidae	Delphinidae (Oceanic Dolphins)
Genus	Bythaelurus	Orcinus (Orcas)
Species	Bythaelurus lutarius	Orcinus orca

Evolutionary Relationship

Brown catshark and Epaulard share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Brown catshark

DD — Data Deficient

Epaulard

DD — Data Deficient

Population: ~50.0K

Trend: Unknown ?

Physical Characteristics

Attribute	Brown catshark	Epaulard
Diet	—	Carnivore
Average Lifespan	—	50 years
Average Length	—	8.0 m
Average Weight	—	5.4 t

Habitat & Geographic Range

Brown catshark

Habitat

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

Epaulard

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 11 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Colombia, Ecuador, Venezuela).

Brown catshark

The Brown Catshark (Bythaelurus lutarius) is a species in the genus Bythaelurus. It is currently classified as Data Deficient on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.

Epaulard

The largest member of the dolphin family, orcas reach up to 9 meters and 6 tonnes and are found in every ocean from Arctic to Antarctic. Apex predators living in matrilineal pods with distinct dialects, hunting strategies, and cultural traditions that differ between populations. Some populations specialize in fish, others in marine mammals. No natural predators; orcas sit at the top of every marine food chain they inhabit.