Indo-Pacific Bottlenose Dolphin vs Lesser Siren

Tursiops aduncus compared with Siren intermedia

Key Differences

• Indo-Pacific Bottlenose Dolphin is Near Threatened while Lesser Siren is Least Concern.

Taxonomic Classification

Rank	Indo-Pacific Bottlenose Dolphin	Lesser Siren
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Amphibia (Amphibians)
Order	Cetacea (Whales & Dolphins)	Caudata (Caudata)
Family	Delphinidae (Oceanic Dolphins)	Sirenidae
Genus	Tursiops (Bottlenose Dolphins)	Siren
Species	Tursiops aduncus	Siren intermedia

Evolutionary Relationship

Indo-Pacific Bottlenose Dolphin and Lesser Siren share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Indo-Pacific Bottlenose Dolphin

NT — Near Threatened

Lesser Siren

LC — Least Concern

Physical Characteristics

Attribute	Indo-Pacific Bottlenose Dolphin	Lesser Siren
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic 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.

Lesser Siren

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

Distributed across Belgium and Mexico.