Neotropical otter vs sei whale

Lontra longicaudis compared with Balaenoptera borealis

Key Differences

• Neotropical otter is Data Deficient while sei whale is Endangered.

Taxonomic Classification

Rank	Neotropical otter	sei whale
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Carnivora (Carnivorans)	Cetacea (Whales & Dolphins)
Family	Mustelidae (Weasels & Otters)	Balaenopteridae (Rorquals)
Genus	Lontra	Balaenoptera (Rorquals)
Species	Lontra longicaudis	Balaenoptera borealis

Evolutionary Relationship

Neotropical otter and sei whale share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Neotropical otter

DD — Data Deficient

sei whale

EN — Endangered

Physical Characteristics

Attribute	Neotropical otter	sei whale
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Neotropical otter

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