Bull ray vs common bottlenose dolphin

Aetomylaeus bovinus compared with Tursiops truncatus

Key Differences

• Bull ray is Critically Endangered while common bottlenose dolphin is Least Concern.

Taxonomic Classification

Rank	Bull ray	common bottlenose dolphin
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Myliobatiformes (Myliobatiformes)	Cetacea (Whales & Dolphins)
Family	Myliobatidae	Delphinidae (Oceanic Dolphins)
Genus	Aetomylaeus	Tursiops (Bottlenose Dolphins)
Species	Aetomylaeus bovinus	Tursiops truncatus

Evolutionary Relationship

Bull ray and common bottlenose dolphin share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Bull ray

CR — Critically Endangered

common bottlenose dolphin

LC — Least Concern

Population: ~600.0K

Trend: Stable →

Physical Characteristics

Attribute	Bull ray	common bottlenose dolphin
Diet	—	Carnivore
Average Lifespan	—	45 years
Average Length	—	3.0 m
Average Weight	—	300.0 kg

Habitat & Geographic Range

Bull ray

common bottlenose dolphin

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 12 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), and South America (Colombia, Ecuador, Venezuela).

Bull ray

The Bull ray (Aetomylaeus bovinus) is a species in the genus Aetomylaeus. It is currently classified as Critically Endangered on the IUCN Red List.

common bottlenose dolphin

The most studied and recognized dolphin species, bottlenose dolphins inhabit warm and temperate oceans worldwide, from coastal shallows to the open sea. Highly intelligent with large brains relative to body size, they demonstrate self-recognition, complex communication, and social learning. They live in fluid fission-fusion societies and cooperate to herd fish. A keystone indicator species for marine ecosystem health.