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

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Why are we ticklish? And why can we not tickle ourselves?

28 upvotes

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How much DNA do we share with dinosaurs and/or woolly mammoths, or other long extinct animals?

7 upvotes

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How likely is it that any given rock or boulder I find in my backyard came from space during the creation of the Earth, as opposed to being formed in a volcano or in the subsurface mantle some millennia later?

2 upvotes

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Have we evolved away from our own protection from solar radiation? Is that why we now need sunscreen? Or have we always burned in the sun?

1 upvotes

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What's the likelihood of these people (link in comments), relatively isolated for ~60,000 years, having genetically diverged from the rest of humanity?

1 upvotes

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How would flight work (or not) in a Stanford torus?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Why are we ticklish? And why can we not tickle ourselves?	28
How much DNA do we share with dinosaurs and/or woolly mammoths, or other long extinct animals?	7
How likely is it that any given rock or boulder I find in my backyard came from space during the creation of the Earth, as opposed to being formed in a volcano or in the subsurface mantle some millennia later?	2
Have we evolved away from our own protection from solar radiation? Is that why we now need sunscreen? Or have we always burned in the sun?	1
What's the likelihood of these people (link in comments), relatively isolated for ~60,000 years, having genetically diverged from the rest of humanity?	1
How would flight work (or not) in a Stanford torus?	1