brain
Why seals can nap with half their brain
Posted by staff / February 20, 2013Seals can sleep with just half of their brain at a time, and biologists have discovered some of the chemicals involved. “Seals do something biologically amazing—they sleep with half their brain at a time. The left side of their brain can sleep while the right side stays awake. Seals sleep this way while they’re in …
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