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linkhttp://life.yahoo.com calendar_today19-02-2009 17:43:28

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2 years ago

Chinstrap penguins in Antarctica have learned to take mini-naps throughout the day to guard their eggs and chicks around-the-clock. These “microsleeps,” totaling around 11 hours per day, appear to be enough to keep the parents going for weeks. yhoo.it/4a0rlKI

Chinstrap penguins in Antarctica have learned to take mini-naps throughout the day to guard their eggs and chicks around-the-clock. These “microsleeps,” totaling around 11 hours per day, appear to be enough to keep the parents going for weeks. yhoo.it/4a0rlKI