in her stomach. Emperor penguins are near the top of the Southern Oceans food chain. When female penguins return to the breeding site, they bring a belly full of food that they regurgitate for the newly hatched chicks. Emperor colonies also face blizzards of up to 200 km/h. Their nasal chambers also recover much of the heat that is normally lost during exhalation. Journal of Experimental Biology. Prvost J, Vilter V (1963). "Population size and breeding success of Emperor Penguins Aptenodytes forsteri at Auster and Taylor Glacier colonies, Mawson Coast, Antarctica". 32 At temperatures above 20 C (68 F an emperor penguin may become agitated as its body temperature and metabolic rate rise to increase heat loss. Contents, taxonomy, emperor penguins were described in 1844 by English zoologist.
42 Conservation status In 2012 the emperor penguin was uplisted from a species of least concern to near threatened by the iucn. While they mostly forage at depths of 150250 metres, the deepest dive recorded was to 565 metres.
Pinshow.; Fedak.A.; Battles.R; Schmidt-Nielsen. Some emperors live to more than 40 years but most do not live that long in the wild. Retrieved charning K (2008). (See diving and travelling ). "Behavioral changes in fasting emperor penguins: evidence for a "refeeding signal" linked to a metabolic shift". Retrieved 26 November 2013. "Diving response to literature behaviour of the Emperor Penguin Aptenodytes forsteri " (PDF). DK Adult (2005 isbn CRC Handbook of Avian Body Masses by John.