Hector’s Beaked Whale vs Lesser Crested Tern

Mesoplodon hectori compared with Thalasseus bengalensis

Key Differences

• Hector’s Beaked Whale is Data Deficient while Lesser Crested Tern is Not Evaluated.

Taxonomic Classification

Rank	Hector’s Beaked Whale	Lesser Crested Tern
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Cetacea (Whales & Dolphins)	Charadriiformes (Charadriiformes)
Family	Hyperoodontidae	Laridae
Genus	Mesoplodon	Thalasseus
Species	Mesoplodon hectori	Thalasseus bengalensis

Evolutionary Relationship

Hector’s Beaked Whale and Lesser Crested Tern share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Hector’s Beaked Whale

DD — Data Deficient

Lesser Crested Tern

NE — Not Evaluated

Physical Characteristics

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

Habitat & Geographic Range

Hector’s Beaked Whale

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Lesser Crested Tern

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Norway and Sweden.