The Sleep Patterns of Penguins: Resting with One Eye Open

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Researchers discuss a study on penguins' sleep patterns, revealing that they sleep for four seconds at a time, hundreds of times an hour, with half of their brain and one eye open. This unique sleep pattern may allow them to rest while remaining alert to external threats or disturbances within their colony.

As its ground offensive appears to be expanding, Israel is acutely aware that time and international support will run out; we examine its impossible set of aims to achieve before then. Europe has not yet faced the kind of fentanyl crisis that has plagued America—but there are risks that it may soon (10:53). And the power-napping prowess of penguins (18:26).

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