Today I LearnedEnglish • 1 year ago

TIL yawning is observed in almost all vertebrate animals and is "contagious" across species. There is no consensus on why yawning occurs.

en.wikipedia.org

571

TIL yawning is observed in almost all vertebrate animals and is "contagious" across species. There is no consensus on why yawning occurs.

en.wikipedia.org

Today I LearnedEnglish • 1 year ago

Yawn - Wikipedia

en.wikipedia.org

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Nate
link
fedilink
English
6•1 year ago
I yawned as this was scrolling into view wtf

Today I Learned

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