Giant Otter vs Indo-Pacific Bottlenose Dolphin

Pteronura brasiliensis compared with Tursiops aduncus

Key Differences

• Giant Otter is Endangered while Indo-Pacific Bottlenose Dolphin is Near Threatened.

Taxonomic Classification

Rank	Giant Otter	Indo-Pacific Bottlenose Dolphin
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class same	Mammalia (哺乳類)	Mammalia (哺乳類)
Order	Carnivora (ネコ目)	Cetacea (Whales & Dolphins)
Family	Mustelidae (Weasels & Otters)	Delphinidae (Oceanic Dolphins)
Genus	Pteronura	Tursiops (Bottlenose Dolphins)
Species	Pteronura brasiliensis	Tursiops aduncus

Evolutionary Relationship

Giant Otter and Indo-Pacific Bottlenose Dolphin share a common ancestor at the Class level: Mammalia. (哺乳類)

Conservation Status

Giant Otter

EN — Endangered

Indo-Pacific Bottlenose Dolphin

NT — Near Threatened

Physical Characteristics

Attribute	Giant Otter	Indo-Pacific Bottlenose Dolphin
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Giant Otter

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

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

Indo-Pacific Bottlenose Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Taiwan. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.