This article is about the bird. For the band, see Emperor Penguin (band).
Emperor penguin
Adults with a chick on Snow Hill Island, Antarctic Peninsula
Conservation status
Near Threatened (IUCN 3.1)[1]
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Class:
Aves
Order:
Sphenisciformes
Family:
Spheniscidae
Genus:
Aptenodytes
Species:
A. forsteri
Binomial name
Aptenodytes forsteri
Gray, 1844
Emperor penguin range (breeding colonies in green)[image reference needed]
The emperor penguin (Aptenodytes forsteri) is the tallest and heaviest of all living penguin species and is endemic to Antarctica. The male and female are similar in plumage and size, reaching 100 cm (39 in) in length and weighing from 22 to 45 kg (49 to 99 lb). Feathers of the head and back are black and sharply delineated from the white belly, pale-yellow breast and bright-yellow ear patches.
Like all penguins, it is flightless, with a streamlined body, and wings stiffened and flattened into flippers for a marine habitat. Its diet consists primarily of fish, but also includes crustaceans, such as krill, and cephalopods, such as squid. While hunting, the species can remain submerged around 20 minutes, diving to a depth of 535 m (1,755 ft). It has several adaptations to facilitate this, including an unusually structured haemoglobin to allow it to function at low oxygen levels, solid bones to reduce barotrauma, and the ability to reduce its metabolism and shut down non-essential organ functions.
The only penguin species that breeds during the Antarctic winter, emperor penguins trek 50–120 km (31–75 mi) over the ice to breeding colonies which can contain up to several thousand individuals. The female lays a single egg, which is incubated for just over two months by the male while the female returns to the sea to feed; parents subsequently take turns foraging at sea and caring for their chick in the colony. The lifespan is typically 20 years in the wild, although observations suggest that some individuals may live to 50 years of age.
^BirdLife International (2020). "Aptenodytes forsteri". IUCN Red List of Threatened Species. 2020: e.T22697752A157658053. doi:10.2305/IUCN.UK.2020-3.RLTS.T22697752A157658053.en. Retrieved 19 November 2021.
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