common bottlenose dolphin vs undulate ray

Tursiops truncatus compared with Raja undulata

Key Differences

common bottlenose dolphin is Least Concern while undulate ray is Endangered.

Taxonomic Classification

Rank	common bottlenose dolphin	undulate ray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Cetacea (Whales & Dolphins)	Rajiformes (Rajiformes)
Family	Delphinidae (Oceanic Dolphins)	Rajidae
Genus	Tursiops (Bottlenose Dolphins)	Raja
Species	Tursiops truncatus	Raja undulata

Evolutionary Relationship

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

View Phylum: Chordata

Conservation Status

common bottlenose dolphin

LC — Least Concern

Population: ~600.0K

Trend: Stable →

undulate ray

EN — Endangered

Physical Characteristics

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

Habitat & Geographic Range

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).

undulate ray

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

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

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.