Indo-Pacific Bottlenose Dolphin vs sei whale

Tursiops aduncus compared with Balaenoptera borealis

Key Differences

• Indo-Pacific Bottlenose Dolphin is Near Threatened while sei whale is Endangered.

Taxonomic Classification

Rank	Indo-Pacific Bottlenose Dolphin	sei whale
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	Delphinidae (Oceanic Dolphins)	Balaenopteridae (Rorquals)
Genus	Tursiops (Bottlenose Dolphins)	Balaenoptera (Rorquals)
Species	Tursiops aduncus	Balaenoptera borealis

Evolutionary Relationship

Indo-Pacific Bottlenose Dolphin and sei whale share a common ancestor at the Order level: Cetacea. (Whales & Dolphins)

Conservation Status

Indo-Pacific Bottlenose Dolphin

NT — Near Threatened

sei whale

EN — Endangered

Physical Characteristics

Attribute	Indo-Pacific Bottlenose Dolphin	sei whale
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.

sei whale

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Colombia, Ecuador). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Shared Countries

Both species can be found in 1 countries:

🇹🇼 Taiwan