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

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Lets say I took a specific location on Earth RIGHT NOW and turned on a magic plasma highlighter that just starts marking where exactly in space that spot is/was, and continuously leaves a trail from that spot as we careen through space, what would that look like?

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Are beards an evolutionary defense against disease?

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Did beards evolve in men because they protect against disease? Do they catch pathogens and prevent them from being inhaled?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Lets say I took a specific location on Earth RIGHT NOW and turned on a magic plasma highlighter that just starts marking where exactly in space that spot is/was, and continuously leaves a trail from that spot as we careen through space, what would that look like?	1
Are beards an evolutionary defense against disease?	1
Did beards evolve in men because they protect against disease? Do they catch pathogens and prevent them from being inhaled?	1