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

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For my body, is there a difference between an orgasm that results from masturbation and one from sexual intercourse?

229 upvotes

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Is there any evolutionary explanation for why the human menstrual cycle is roughly as long as the lunar cycle, or is this just a coincidence?

1 upvotes

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Do any other species fight "wars" amongst each other like humans do? What's the evolutionary advantage to it?

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When it's stormy out at sea, is it safer to be in a submarine underwater than on a ship?

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If identical twins share the same DNA, why do they still have features that enable one to distinguish between them?

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What is the total energy value of the Universe?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
For my body, is there a difference between an orgasm that results from masturbation and one from sexual intercourse?	229
Is there any evolutionary explanation for why the human menstrual cycle is roughly as long as the lunar cycle, or is this just a coincidence?	1
Do any other species fight "wars" amongst each other like humans do? What's the evolutionary advantage to it?	1
When it's stormy out at sea, is it safer to be in a submarine underwater than on a ship?	1
If identical twins share the same DNA, why do they still have features that enable one to distinguish between them?	1
What is the total energy value of the Universe?	1