Perrin’s Beaked Whale vs Royal Tern

Mesoplodon perrini compared with Thalasseus maximus

Key Differences

• Perrin’s Beaked Whale is Endangered while Royal Tern is Least Concern.

Taxonomic Classification

Rank	Perrin’s Beaked Whale	Royal 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 perrini	Thalasseus maximus

Evolutionary Relationship

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

Conservation Status

Perrin’s Beaked Whale

EN — Endangered

Royal Tern

LC — Least Concern

Physical Characteristics

Attribute	Perrin’s Beaked Whale	Royal Tern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Perrin’s Beaked Whale

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Royal Tern

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, Sweden, and Venezuela.

Royal Tern

Royal Tern (Thalasseus maximus) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.