Chinese river dolphin vs sei whale

Lipotes vexillifer compared with Balaenoptera borealis

Key Differences

• Chinese river dolphin is Critically Endangered while sei whale is Endangered.

Taxonomic Classification

Rank	Chinese river 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	Lipotidae	Balaenopteridae (Rorquals)
Genus	Lipotes	Balaenoptera (Rorquals)
Species	Lipotes vexillifer	Balaenoptera borealis

Evolutionary Relationship

Chinese river dolphin and sei whale share a common ancestor at the Order level: Cetacea. (Whales & Dolphins)

Conservation Status

Chinese river dolphin

CR — Critically Endangered

sei whale

EN — Endangered

Physical Characteristics

Attribute	Chinese river dolphin	sei whale
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Chinese river dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.

Chinese river dolphin

The Chinese River Dolphin (Lipotes vexillifer) is a species in the genus Lipotes. It is currently classified as Critically Endangered on the IUCN Red List.