Atlantic Dolphin vs Bigeye thresher

Delphinus delphis compared with Alopias pelagicus

Key Differences

• Atlantic Dolphin is Least Concern while Bigeye thresher is Endangered.

Taxonomic Classification

Rank	Atlantic Dolphin	Bigeye thresher
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Chondrichthyes (Cartilaginous Fish)
Order	Cetacea (Whales & Dolphins)	Lamniformes (Mackerel Sharks)
Family	Delphinidae (Oceanic Dolphins)	Alopiidae
Genus	Delphinus	Alopias
Species	Delphinus delphis	Alopias pelagicus

Evolutionary Relationship

Atlantic Dolphin and Bigeye thresher share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Atlantic Dolphin

LC — Least Concern

Bigeye thresher

EN — Endangered

Physical Characteristics

Attribute	Atlantic Dolphin	Bigeye thresher
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Atlantic Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

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

Bigeye thresher

Habitat

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

Range

Distributed across Colombia and Taiwan. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Atlantic Dolphin

Atlantic Dolphin (Delphinus delphis) 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.

Bigeye thresher

The Bigeye thresher (Alopias pelagicus) is a species in the genus Alopias. It is currently classified as Endangered on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.

Shared Countries

Both species can be found in 2 countries:

🇨🇴 Colombia 🇹🇼 Taiwan