Bigelow's ray vs Epaulard

Rajella bigelowi compared with Orcinus orca

Key Differences

Bigelow's ray is Least Concern while Epaulard is Data Deficient.

Taxonomic Classification

Rank	Bigelow's ray	Epaulard
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Rajiformes (Rajiformes)	Cetacea (Whales & Dolphins)
Family	Rajidae	Delphinidae (Oceanic Dolphins)
Genus	Rajella	Orcinus (Orcas)
Species	Rajella bigelowi	Orcinus orca

Evolutionary Relationship

Bigelow's ray and Epaulard share a common ancestor at the Phylum level: Chordata. (Chordates)

View Phylum: Chordata

Conservation Status

Bigelow's ray

LC — Least Concern

Epaulard

DD — Data Deficient

Population: ~50.0K

Trend: Unknown ?

Physical Characteristics

Attribute	Bigelow's ray	Epaulard
Diet	—	Carnivore
Average Lifespan	—	50 years
Average Length	—	8.0 m
Average Weight	—	5.4 t

Habitat & Geographic Range

Bigelow's ray

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Found in Portugal.

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).

Bigelow's ray

The Bigelow's ray (Rajella bigelowi) is a species in the genus Rajella. It is currently classified as Least Concern on the IUCN Red List. Native to Europe, inhabiting ecosystems characteristic of the region.

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.