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Yawning related to brain size not boredom says University experiment
An experiment from Utrecht University has found that yawning does not have to be a sign of boredom, rather it is related to brain size. The experiment conducted a study of more than one hundred species of mammals and birds to find the results.
βhttps://www.dailymail.com/video/sciencetech/video-2416236/Video-Yawning-related-brain-size-not-boredom-says-experiment.html
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