Blainville’s Beaked Whale vs Brown Rat

Mesoplodon densirostris compared with Rattus norvegicus

Key Differences

• Blainville’s Beaked Whale is Data Deficient while Brown Rat is Least Concern.

Taxonomic Classification

Rank	Blainville’s Beaked Whale	Brown Rat
Kingdom same	Animalia (hewan)	Animalia (hewan)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (mamalia)	Mammalia (mamalia)
Order	Cetacea (Whales & Dolphins)	Rodentia (hewan pengerat)
Family	Hyperoodontidae	Muridae (Mice & Rats)
Genus	Mesoplodon	Rattus
Species	Mesoplodon densirostris	Rattus norvegicus

Evolutionary Relationship

Blainville’s Beaked Whale and Brown Rat share a common ancestor at the Class level: Mammalia. (mamalia)

Conservation Status

Blainville’s Beaked Whale

DD — Data Deficient

Brown Rat

LC — Least Concern

Physical Characteristics

Attribute	Blainville’s Beaked Whale	Brown Rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blainville’s Beaked Whale

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

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

Brown Rat

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 10 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (11 countries), Asia (15 countries), Europe (41 countries), North America (16 countries), Oceania and the Pacific (10 countries), and South America (10 countries).

Blainville’s Beaked Whale

The Blainville’s Beaked Whale (Mesoplodon densirostris) is a species in the genus Mesoplodon. It is currently classified as Data Deficient on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Brown Rat

Brown Rat (Rattus norvegicus) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 5 countries:

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