/u/Luke-HW's posts in /r/askscience

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If insects like the Prey Mantis have thousands of eyes, then why do they have pupils?

3457 upvotes

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Giraffes only sleep a cumulative 30 minutes per day. They take brief, minute-long naps throughout the day, all while standing up. How are they able to function without large amounts of rest?

774 upvotes

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Why are prion diseases so difficult to cure?

41 upvotes

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How are large buildings containing asbestos demolished?

29 upvotes

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Why hasn’t London been able to reduce its NO2 levels?

10 upvotes

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How were horses used to make glue?

8 upvotes

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Why do dogs, but not wolves, need to be groomed?

4 upvotes

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Why are birth defects so common in humans compared to other species?

1 upvotes

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Why can we look directly at the sun during a sunrise and sunset, but not at noon?

1 upvotes

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Why is veal considered white meat, when beef is a red meat?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
If insects like the Prey Mantis have thousands of eyes, then why do they have pupils?	3457
Giraffes only sleep a cumulative 30 minutes per day. They take brief, minute-long naps throughout the day, all while standing up. How are they able to function without large amounts of rest?	774
Why are prion diseases so difficult to cure?	41
How are large buildings containing asbestos demolished?	29
Why hasn’t London been able to reduce its NO2 levels?	10
How were horses used to make glue?	8
Why do dogs, but not wolves, need to be groomed?	4
Why are birth defects so common in humans compared to other species?	1
Why can we look directly at the sun during a sunrise and sunset, but not at noon?	1
Why is veal considered white meat, when beef is a red meat?	1