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There’s a Weird Correlation Between Brain Size And Yawning, Study Reveals – ScienceAlert

A large-scale animal study has revealed something rather interesting about yawning: Vertebrates with larger brains and more neurons tend to have longer-lasting…

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A large-scale animal study has revealed something rather interesting about yawning: Vertebrates with larger brains and more neurons tend to have longer-lasting yawns.
Researchers collected data on 1,291 separate yawns from zoo trips and online videos, covering a total of 55 mammal species and 46 bird species, and found “robust positive correlations” between how long an animal yawns for and the size of its brain.
“We went to several zoos with a camera and waited by the animal enclosures for the animals…

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