Auckland Islands Teal vs Commerson s Dolphin

Anas aucklandica compared with Cephalorhynchus commersonii

Key Differences

• Auckland Islands Teal is Near Threatened while Commerson s Dolphin is Least Concern.

Taxonomic Classification

Rank	Auckland Islands Teal	Commerson s Dolphin
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class	Aves (นก)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order	Anseriformes (อันดับห่าน)	Cetacea (Whales & Dolphins)
Family	Anatidae	Delphinidae (Oceanic Dolphins)
Genus	Anas	Cephalorhynchus
Species	Anas aucklandica	Cephalorhynchus commersonii

Evolutionary Relationship

Auckland Islands Teal and Commerson s Dolphin share a common ancestor at the Phylum level: Chordata. (สัตว์มีแกนสันหลัง)

Conservation Status

Auckland Islands Teal

NT — Near Threatened

Commerson s Dolphin

LC — Least Concern

Physical Characteristics

Attribute	Auckland Islands Teal	Commerson s Dolphin
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Auckland Islands Teal

Habitat

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

Range

Distributed across Norway and United Kingdom. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Commerson s Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Auckland Islands Teal

The Auckland Islands Teal (Anas aucklandica) is a species in the genus Anas. It is currently classified as Near Threatened on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

Commerson s Dolphin

<em>Cephalorhynchus commersonii</em>, commonly known as Commerson's Dolphin, is a small cetacean in the family Delphinidae. This species is classified as Least Concern on the IUCN Red List and is notable for its striking black-and-white coloration, which makes it one of the most visually distinctive dolphin species. Commerson's Dolphins typically inhabit coastal and nearshore marine environments of the Southern Hemisphere, particularly around the Falkland Islands, the southern tip of South America, and a geographically isolated population near the Kerguelen Islands in the Indian Ocean. These dolphins are highly social animals, often observed in small groups engaging in acrobatic behaviors near the surface. They typically feed on fish, squid, and crustaceans, often hunting cooperatively in shallow waters and kelp beds. Their average lifespan is approximately 18 years, and they are known for their fast, energetic swimming. Commerson's Dolphins are sometimes caught as bycatch in fishing nets, posing a localized conservation concern despite their overall Least Concern status.