Emperor Penguin vs King Penguin

Aptenodytes forsteri compared with Aptenodytes patagonicus

Key Differences

Emperor Penguin is Near Threatened while King Penguin is Least Concern.

Taxonomic Classification

Rank	Emperor Penguin	King Penguin
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class same	Aves (นก)	Aves (นก)
Order same	Sphenisciformes (Penguins)	Sphenisciformes (Penguins)
Family same	Spheniscidae (Penguins)	Spheniscidae (Penguins)
Genus same	Aptenodytes (Great Penguins)	Aptenodytes (Great Penguins)
Species	Aptenodytes forsteri	Aptenodytes patagonicus

Evolutionary Relationship

Emperor Penguin and King Penguin share a common ancestor at the Genus level: Aptenodytes. (Great Penguins)

ดู: Genus: Aptenodytes

Conservation Status

Emperor Penguin

NT — Near Threatened

Population: ~595.0K

Trend: Stable →

King Penguin

LC — Least Concern

Physical Characteristics

Attribute	Emperor Penguin	King Penguin
Diet	Carnivore	—
Average Lifespan	20 years	—
Average Length	1.1 m	—
Average Weight	40.0 kg	—

Habitat & Geographic Range

Emperor Penguin

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Norway. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

King Penguin

Habitat

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

Range

Found in Norway.

Emperor Penguin

The world's largest penguin, emperor penguins stand up to 1.2 meters and weigh 45 kg, inhabiting the Antarctic continent in some of the most extreme conditions on Earth. They breed in midwinter darkness at temperatures below -60°C, with males incubating single eggs on their feet under a brood pouch for 65 days while females are at sea. Their huddling behavior — cycling individuals through the warm center of thousands-strong groups — is a masterclass in cooperative survival.