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Why are yawns contagious? We asked a scientist - YouTube
www.youtube.com › watch
Duration:
3:12
Posted:
Jul 17, 2018
Why Is Yawning Contagious? - YouTube
m.youtube.com › watch
Duration:
5:45
Posted:
May 12, 2012
The science of yawning - YouTube
www.youtube.com › watch
Duration:
5:01
Posted:
Nov 7, 2021
Why Is Yawning Contagious? - Instant Egghead #52 - YouTube
www.youtube.com › watch
Duration:
2:36
Posted:
Oct 24, 2013
Science finally explains contagious yawning - YouTube
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Duration:
0:45
Posted:
Jun 14, 2019
Why do we yawn? Experts explain - YouTube
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Duration:
1:01
Posted:
Nov 12, 2017
Why is yawning contagious? - Facebook
m.facebook.com › ... › TED-Ed › Videos
Duration:
4:24
Posted:
Oct 4, 2017
Why is yawning contagious? | #aumsum #kids ... - YouTube
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Duration:
0:58
Posted:
Feb 12, 2018
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