Data Show Orcas Defy Sleeping New research shows that killer whales don't get a wink of sleep during their first month of life. And neither do their moms. The finding, published in the journal Nature, contradicts the notion that all mammals need to sleep regularly to thrive, especially when they're young.
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Data Show Orcas Defy Sleeping

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Data Show Orcas Defy Sleeping

Data Show Orcas Defy Sleeping

Data Show Orcas Defy Sleeping

  • Download
  • <iframe src="https://www.npr.org/player/embed/4725135/4725136" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">

New research shows that killer whales don't get a wink of sleep during their first month of life. And neither do their moms. The finding, published in the journal Nature, contradicts the notion that all mammals need to sleep regularly to thrive, especially when they're young.