These penguins take 10,000 little naps a day — seconds at a time : Short Wave : NPR

Constantly on the nod, chinstrap penguins catch seconds-long

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Short Wave: These Penguins Take 10,000 Little Naps A Day — Seconds

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These Penguins Take 10,000 Little Naps A Day — Seconds At A Time

Parent penguins take more than 10,000 micronaps per day, study

These Penguins Take 10,000 Little Naps A Day — Seconds At A Time

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Chinstrap Penguins Take Over 10,000 Small Naps a Day, Research Says

Parent penguins take more than 10,000 tiny naps per day: new study