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

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How long does it actually take, as in how many partners/times you've had sex, to contract an STI/STD if you only have sex with clean partners? NSFW

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Why do many animals naturally behave impulsively and succumb so easily to their instincts?

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How are species behaviors that aren't taught/learned, and aren't essential for survival or any biological process, passed down genetically?

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When an irritant is in your nose you have to sneeze, but when you hold the sneeze back suddenly the urge goes away, despite not removing the irritant. Does this suggest the urge to sneeze more psychological than physical?

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How come some species have never had a drastic evolutionary change, like the Praying Mantis which has been almost exactly the same for its estimated 135M years of existence?

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Why do our eyes seemingly feel like they see better when in silence, and less efficient when surrounded by noise?

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If we were to record an echoe down a long tunnel with a vessel traveling at the speed of sound, would it still sound like an echoe, or just one long note?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
How long does it actually take, as in how many partners/times you've had sex, to contract an STI/STD if you only have sex with clean partners? NSFW	1
Why do many animals naturally behave impulsively and succumb so easily to their instincts?	1
How are species behaviors that aren't taught/learned, and aren't essential for survival or any biological process, passed down genetically?	1
When an irritant is in your nose you have to sneeze, but when you hold the sneeze back suddenly the urge goes away, despite not removing the irritant. Does this suggest the urge to sneeze more psychological than physical?	1
How come some species have never had a drastic evolutionary change, like the Praying Mantis which has been almost exactly the same for its estimated 135M years of existence?	1
Why do our eyes seemingly feel like they see better when in silence, and less efficient when surrounded by noise?	1
If we were to record an echoe down a long tunnel with a vessel traveling at the speed of sound, would it still sound like an echoe, or just one long note?	1