Why do we yawn?
- Curious questions, Human body, Life Science
- October 17, 2014

Imagine that you’re an archaeologist who has just discovered the unopened tomb of a pharoah! In amongst the many treasures that were placed in the tomb you find the dried-out, mummified remains of food that was left for the pharoah to eat in the afterlife. And in the middle of that, you find a jar
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