Lesser Sac-winged Bat vs sei whale

Saccopteryx leptura compared with Balaenoptera borealis

Key Differences

• Lesser Sac-winged Bat is Least Concern while sei whale is Endangered.

Taxonomic Classification

Rank	Lesser Sac-winged Bat	sei whale
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Chiroptera (Bats)	Cetacea (Whales & Dolphins)
Family	Emballonuridae	Balaenopteridae (Rorquals)
Genus	Saccopteryx	Balaenoptera (Rorquals)
Species	Saccopteryx leptura	Balaenoptera borealis

Evolutionary Relationship

Lesser Sac-winged Bat and sei whale share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Lesser Sac-winged Bat

LC — Least Concern

sei whale

EN — Endangered

Physical Characteristics

Attribute	Lesser Sac-winged Bat	sei whale
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Lesser Sac-winged Bat

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