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Difference between revisions of "Emperor penguin"
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→Courtship and breeding
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===Courtship and breeding=== | ===Courtship and breeding=== | ||
[[File:EmperorPenguinFeedingChick.jpg|thumb|right|Emperor penguin feeding chick]] | [[File:EmperorPenguinFeedingChick.jpg|thumb|right|500px|Emperor penguin feeding chick]] | ||
Emperor penguins are able to breed at around three years of age, and usually commence breeding around one to three years later. The yearly reproductive cycle begins at the start of the Antarctic winter, in March and April, when all mature emperor penguins travel to colonial nesting areas, often walking 50 to 120 km (31 to 75 mi) inland from the edge of the [[pack ice]]. The start of travel appears to be triggered by decreasing day lengths; emperor penguins in captivity have been induced successfully into breeding by using lighting systems mimicking seasonal Antarctic day lengths. | Emperor penguins are able to breed at around three years of age, and usually commence breeding around one to three years later. The yearly reproductive cycle begins at the start of the Antarctic winter, in March and April, when all mature emperor penguins travel to colonial nesting areas, often walking 50 to 120 km (31 to 75 mi) inland from the edge of the [[pack ice]]. The start of travel appears to be triggered by decreasing day lengths; emperor penguins in captivity have been induced successfully into breeding by using lighting systems mimicking seasonal Antarctic day lengths. | ||