Lesser Cachalot vs sei whale

Kogia breviceps compared with Balaenoptera borealis

Key Differences

• Lesser Cachalot is Data Deficient while sei whale is Endangered.

Taxonomic Classification

Rank	Lesser Cachalot	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	Kogiidae	Balaenopteridae (Rorquals)
Genus	Kogia	Balaenoptera (Rorquals)
Species	Kogia breviceps	Balaenoptera borealis

Evolutionary Relationship

Lesser Cachalot and sei whale share a common ancestor at the Order level: Cetacea. (Whales & Dolphins)

Conservation Status

Lesser Cachalot

DD — Data Deficient

sei whale

EN — Endangered

Physical Characteristics

Attribute	Lesser Cachalot	sei whale
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Lesser Cachalot

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, Portugal, Sweden, and Taiwan.

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 5 countries:

🇨🇴 Colombia 🇪🇨 Ecuador 🇵🇹 Portugal 🇸🇪 Sweden 🇹🇼 Taiwan