Irrawaddy dolphin vs Lesser Cachalot

Orcaella brevirostris compared with Kogia breviceps

Key Differences

• Irrawaddy dolphin is Endangered while Lesser Cachalot is Data Deficient.

Taxonomic Classification

Rank	Irrawaddy dolphin	Lesser Cachalot
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)	Kogiidae
Genus	Orcaella	Kogia
Species	Orcaella brevirostris	Kogia breviceps

Evolutionary Relationship

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

Conservation Status

Irrawaddy dolphin

EN — Endangered

Lesser Cachalot

DD — Data Deficient

Physical Characteristics

Attribute	Irrawaddy dolphin	Lesser Cachalot
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Irrawaddy dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Lesser Cachalot

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

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