Napo Spiny-rat vs sei whale

Proechimys quadruplicatus compared with Balaenoptera borealis

Key Differences

• Napo Spiny-rat is Least Concern while sei whale is Endangered.

Taxonomic Classification

Rank	Napo Spiny-rat	sei whale
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Rodentia (Rodents)	Cetacea (Whales & Dolphins)
Family	Echimyidae	Balaenopteridae (Rorquals)
Genus	Proechimys	Balaenoptera (Rorquals)
Species	Proechimys quadruplicatus	Balaenoptera borealis

Evolutionary Relationship

Napo Spiny-rat and sei whale share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Napo Spiny-rat

LC — Least Concern

sei whale

EN — Endangered

Physical Characteristics

Attribute	Napo Spiny-rat	sei whale
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Napo Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.

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 2 countries:

🇨🇴 Colombia 🇪🇨 Ecuador