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- Penguin dad and mom sleep for only a few seconds at a time to protect newborns, examine reveals The Related Press
- 10,000 naps a day: how chinstrap penguins survive on microsleeps The Guardian
- Penguins Take 1000’s of Naps Each Day The New York Occasions
- Excessive sleep conduct documented in cute Antarctic chinstrap penguins Reuters
- Why chinstrap penguins sleep 1000’s of occasions a day The Economist
- View Full Protection on Google Information
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