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[[File:Emperor Penguins-Snow Hill Island.jpg|thumb|200px|left]]
[[File:Ernest Shackleton before 1909.jpg|250px|left]]
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 122 cm (48 in) in height and weighing from 22 to 45 kg (49 to 99 lb). The dorsal side and head 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.
'''[[Ernest Shackleton]]''' was a polar explorer who led three British expeditions to the [[Antarctica|Antarctic]], and one of the principal figures of the period known as the Heroic Age of Antarctic Exploration.


Its diet consists primarily of fish, but can also include crustaceans, such as [[krill]], and cephalopods, such as [[glacial squid|squid]]. In hunting, the species can remain submerged up to 18 minutes, diving to a depth of 535 m (1,755 ft). It has several adaptations to facilitate this, including an unusually structured hemoglobin 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. '''([[Emperor penguin|Full Article...]])'''
After the race to the [[South Pole]] ended in December 1911 with [[Roald Amundsen]]'s conquest, Shackleton turned his attention to the crossing of [[Antarctica]] from sea to sea, via the pole. To this end he made preparations for what became the Imperial Trans-Antarctic Expedition, 1914–17. Disaster struck this expedition when its ship, ''[[Endurance]]'', became trapped in [[pack ice]] and was slowly crushed before the shore parties could be landed. The crew escaped by camping on the sea ice until it disintegrated, then by launching the lifeboats to reach Elephant Island and ultimately the inhabited island of South Georgia, a stormy ocean voyage of 720 nautical miles and Shackleton's most famous exploit.
 
'''([[Ernest Shackleton|Full Article...]])'''

Latest revision as of 02:55, 15 April 2024

Ernest Shackleton before 1909.jpg

Ernest Shackleton was a polar explorer who led three British expeditions to the Antarctic, and one of the principal figures of the period known as the Heroic Age of Antarctic Exploration.

After the race to the South Pole ended in December 1911 with Roald Amundsen's conquest, Shackleton turned his attention to the crossing of Antarctica from sea to sea, via the pole. To this end he made preparations for what became the Imperial Trans-Antarctic Expedition, 1914–17. Disaster struck this expedition when its ship, Endurance, became trapped in pack ice and was slowly crushed before the shore parties could be landed. The crew escaped by camping on the sea ice until it disintegrated, then by launching the lifeboats to reach Elephant Island and ultimately the inhabited island of South Georgia, a stormy ocean voyage of 720 nautical miles and Shackleton's most famous exploit.

(Full Article...)