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Why seals can nap with half their brain

sleeping seal

Seals 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 water, but they sleep like humans while on land. Our research may explain how this unique biological phenomenon happens” says Professor John Peever of the University of Toronto.

Full story at Futurity.

More research news from top universities.

Photo credit: geograph.org.uk/Wikimedia Commons

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