Lesser Noctule vs sei whale

Nyctalus leisleri compared with Balaenoptera borealis

Taxonomic Classification

Rank	Lesser Noctule	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	Vespertilionidae	Balaenopteridae (Rorquals)
Genus	Nyctalus	Balaenoptera (Rorquals)
Species	Nyctalus leisleri	Balaenoptera borealis

Evolutionary Relationship

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

Conservation Status

Lesser Noctule

EN — Endangered

sei whale

EN — Endangered

Physical Characteristics

Attribute	Lesser Noctule	sei whale
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Lesser Noctule

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Belgium, Denmark, Luxembourg, Sweden, and Ukraine. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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:

🇩🇰 Denmark 🇸🇪 Sweden