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

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Why does an avocado oxidize and turn brown when exposed to air, but with the pit still in the cut half doesn't oxidize for a longer period of time?

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What is the reason some human evolved to develop freckles and moles?

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What evolutionary benefits came from humans evolving straight hair in Northern latitudes vs sub Saharan tight curly hair?

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My jalapeños were started indoors and I have been slowly hardening them off outside. The new leaves are become glossy compares to the eggshell indoor leaves. Is the new glossyness the plants natural sunscreen?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Why does an avocado oxidize and turn brown when exposed to air, but with the pit still in the cut half doesn't oxidize for a longer period of time?	1
What is the reason some human evolved to develop freckles and moles?	1
What evolutionary benefits came from humans evolving straight hair in Northern latitudes vs sub Saharan tight curly hair?	1
My jalapeños were started indoors and I have been slowly hardening them off outside. The new leaves are become glossy compares to the eggshell indoor leaves. Is the new glossyness the plants natural sunscreen?	1