Irrawaddy dolphin vs Red Knot

Orcaella brevirostris compared with Calidris canutus

Key Differences

• Irrawaddy dolphin is Endangered while Red Knot is Least Concern.

Taxonomic Classification

Rank	Irrawaddy dolphin	Red Knot
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Cetacea (Whales & Dolphins)	Charadriiformes (Charadriiformes)
Family	Delphinidae (Oceanic Dolphins)	Scolopacidae
Genus	Orcaella	Calidris
Species	Orcaella brevirostris	Calidris canutus

Evolutionary Relationship

Irrawaddy dolphin and Red Knot share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Irrawaddy dolphin

EN — Endangered

Red Knot

LC — Least Concern

Physical Characteristics

Attribute	Irrawaddy dolphin	Red Knot
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Irrawaddy dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Red Knot

Habitat

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

Range

Widely distributed across Europe (4 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela).

Red Knot

Red Knot (Calidris canutus) 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.