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

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If children develop the portion of theory of mind that “others can have different perspectives and different knowledge than I do” at ~4, why do they learn to lie at ~2.5 years old?

26 upvotes

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How do animals whose genders are decided based on temperature work? What changes in development that’s temperature sensitive, and why?

20 upvotes

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Why did Saturn’s rings form as rings?

3 upvotes

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Why does the human body have many “counter intuitive” reactions to things?

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How do the thermal color changing materials work?

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Would evolution occur faster in areas with higher (but not lethal) levels of radiation, due to the mutations that come with radiation?

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When someone’s body temperature hits freezing, you’re supposed to reheat them in around 33 Fahrenheit water. Why does it need to be barely above freezing water, and not something higher. Like 70 degrees?

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Why were peppered moths able to evolve so rapidly (almost complete color change in under 50 years) while it takes other species 100s of years?

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Why do nutritional guides (food pyramid, my plate, 7 basic food groups, etc) vary so much by country and time period?

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From an evolutionary perspective, why would men evolve to grow facial hair like beards and mustaches, while women don’t (or don’t have as much of it)?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
If children develop the portion of theory of mind that “others can have different perspectives and different knowledge than I do” at ~4, why do they learn to lie at ~2.5 years old?	26
How do animals whose genders are decided based on temperature work? What changes in development that’s temperature sensitive, and why?	20
Why did Saturn’s rings form as rings?	3
Why does the human body have many “counter intuitive” reactions to things?	1
How do the thermal color changing materials work?	1
Would evolution occur faster in areas with higher (but not lethal) levels of radiation, due to the mutations that come with radiation?	1
When someone’s body temperature hits freezing, you’re supposed to reheat them in around 33 Fahrenheit water. Why does it need to be barely above freezing water, and not something higher. Like 70 degrees?	1
Why were peppered moths able to evolve so rapidly (almost complete color change in under 50 years) while it takes other species 100s of years?	1
Why do nutritional guides (food pyramid, my plate, 7 basic food groups, etc) vary so much by country and time period?	1
From an evolutionary perspective, why would men evolve to grow facial hair like beards and mustaches, while women don’t (or don’t have as much of it)?	1