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

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If a lack of sunlight has the propensity to make us depressed, why did humans migrate to the Arctic Circle?

635 upvotes

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There's evidence to suggest that dolphins have the requisite attributes to gain them the same rights as humans. But is there evidence from any other animals that suggest the same thing?

93 upvotes

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If a great dane and a chihuahua can't breed, how can they be considered part of the same species?

44 upvotes

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How much more likely are you to survive/recover from an accident if you're fitter/stronger through exercise compared to otherwise?

39 upvotes

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If a (non-living) object has a scent/odour, does that mean it's disintegrating?

25 upvotes

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How did genders arise?

18 upvotes

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Why don't they use keyhole surgery to remove kidney stones?

11 upvotes

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How big is the diameter of the matter of a black hole?

9 upvotes

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Are there any practical uses for the concept of infinity? Have any real-world applications been necessarily derived from mathematics that uses infinity?

8 upvotes

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How viable is it for an obese person to simply not eat for a few weeks?

5 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
If a lack of sunlight has the propensity to make us depressed, why did humans migrate to the Arctic Circle?	635
There's evidence to suggest that dolphins have the requisite attributes to gain them the same rights as humans. But is there evidence from any other animals that suggest the same thing?	93
If a great dane and a chihuahua can't breed, how can they be considered part of the same species?	44
How much more likely are you to survive/recover from an accident if you're fitter/stronger through exercise compared to otherwise?	39
If a (non-living) object has a scent/odour, does that mean it's disintegrating?	25
How did genders arise?	18
Why don't they use keyhole surgery to remove kidney stones?	11
How big is the diameter of the matter of a black hole?	9
Are there any practical uses for the concept of infinity? Have any real-world applications been necessarily derived from mathematics that uses infinity?	8
How viable is it for an obese person to simply not eat for a few weeks?	5