Hector’s Beaked Whale vs Lesser Noctule

Mesoplodon hectori compared with Nyctalus leisleri

Key Differences

• Hector’s Beaked Whale is Data Deficient while Lesser Noctule is Endangered.

Taxonomic Classification

Rank	Hector’s Beaked Whale	Lesser Noctule
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Cetacea (Whales & Dolphins)	Chiroptera (Bats)
Family	Hyperoodontidae	Vespertilionidae
Genus	Mesoplodon	Nyctalus
Species	Mesoplodon hectori	Nyctalus leisleri

Evolutionary Relationship

Hector’s Beaked Whale and Lesser Noctule share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Hector’s Beaked Whale

DD — Data Deficient

Lesser Noctule

EN — Endangered

Physical Characteristics

Attribute	Hector’s Beaked Whale	Lesser Noctule
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Hector’s Beaked Whale

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.