Amazon River Dolphin vs Calderon Gris

Inia geoffrensis compared with Grampus griseus

Key Differences

• Amazon River Dolphin is Data Deficient while Calderon Gris is Least Concern.

Taxonomic Classification

Rank	Amazon River Dolphin	Calderon Gris
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order same	Cetacea (Whales & Dolphins)	Cetacea (Whales & Dolphins)
Family	Iniidae	Delphinidae (Oceanic Dolphins)
Genus	Inia	Grampus
Species	Inia geoffrensis	Grampus griseus

Evolutionary Relationship

Amazon River Dolphin and Calderon Gris share a common ancestor at the Order level: Cetacea. (Whales & Dolphins)

Conservation Status

Amazon River Dolphin

DD — Data Deficient

Calderon Gris

LC — Least Concern

Physical Characteristics

Attribute	Amazon River Dolphin	Calderon Gris
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amazon River Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.

Calderon Gris

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

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

Amazon River Dolphin

The Amazon River Dolphin (Inia geoffrensis) is a species in the genus Inia. Its conservation status is listed as Data Deficient, indicating insufficient data for assessment. Typically found in diverse terrestrial and aquatic ecosystems.

Calderon Gris

The Calderon Gris (Grampus griseus) is a species in the genus Grampus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Shared Countries

Both species can be found in 3 countries:

🇨🇴 Colombia 🇪🇨 Ecuador 🇻🇪 Venezuela