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

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There's evidence that life emerged and evolved from the water onto land, but is there any evidence of evolution happening from land back to water?

8246 upvotes

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Does adrenaline have any effect on the amount of oxygen that our bodies use?

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Is it impossible for evolution to do something wrong or make a bad choice?

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If salmonella bacteria is only killed by heating to high temperatures, yet the human body does not reach these temperatures, then do we eat cold meats with an increased risk?

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Is there a scientific reason of how we have the ability to imagine things that are impossible to happen in existence? Why are our minds not limited to only the possible?

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Why does your body feel full after eating something sweet like a small chocolate but not full after eating something actually bigger like a broccoli stem?

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Is there a scientific reason why some babies can stay asleep through lots of noise whilst others are easily woken up?

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Why do I go extra clumsy when trying to be extra quiet?

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[Serious] How do we make instruments so small?

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How are scientific instruments made to such small microscopic levels for use in things like Artificial Insemination?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
There's evidence that life emerged and evolved from the water onto land, but is there any evidence of evolution happening from land back to water?	8246
Does adrenaline have any effect on the amount of oxygen that our bodies use?	7
Is it impossible for evolution to do something wrong or make a bad choice?	1
If salmonella bacteria is only killed by heating to high temperatures, yet the human body does not reach these temperatures, then do we eat cold meats with an increased risk?	1
Is there a scientific reason of how we have the ability to imagine things that are impossible to happen in existence? Why are our minds not limited to only the possible?	1
Why does your body feel full after eating something sweet like a small chocolate but not full after eating something actually bigger like a broccoli stem?	1
Is there a scientific reason why some babies can stay asleep through lots of noise whilst others are easily woken up?	1
Why do I go extra clumsy when trying to be extra quiet?	1
[Serious] How do we make instruments so small?	1
How are scientific instruments made to such small microscopic levels for use in things like Artificial Insemination?	1