/u/boilons's posts in /r/askscience

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Humans, cats and dogs yawn. Is there a specific group of mammals that yawn? If so, what would be the common ancestor that evolved this trait? And what is the benefit?

8 upvotes

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Eating sharp/old/strong cheddar cheese makes my cheeks sweat. No sweat anywhere else, and no other food does this to me..... WTF?!

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Humans, cats and dogs yawn. Is there a specific group of mammals that yawn? If so, what would be the common ancestor that evolved this trait? And what is the benefit?	8
Eating sharp/old/strong cheddar cheese makes my cheeks sweat. No sweat anywhere else, and no other food does this to me..... WTF?!	1