Why do we yawn ? It’s almost certainly not for the reason you think
Given that we’ve literally grown up with them, we often know surprisingly little about how our bodies work. This new series aims to fill the gaps All vertebrates yawn, or indulge in a behaviour that’s at least recognisable as yawn-adjacent. Sociable baboons yawn, but so do semi-solitary (…)
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The Guardian (South&CentralAsia)
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The Guardian (South&CentralAsia)
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