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

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If the Many Worlds interpretation of Quantum Mechanics is true, is there any conceivable way to hop from one timeline to another?

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Do any animals display instinctual behaviors that are now outmoded thanks to changes in their ecological circumstances? For example, are there any fish that try to swim up rivers that no longer exist in order to spawn?

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Do any animals show examples of vestigial instinctual behavior?

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If you had a device that compressed spatial dimensions such that your arms held straight in front of you appeared to instead cross each other, would it be painful or would the physics of stress operate on your body as if everything was normal?

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In species where polar bodies can fuse with an egg for the purpose of parthenogenesis, are these species born with their lifetime of eggs already in their ovaries like humans (therefore the immature egg is already 'fertilized' waiting in the ovary)? Or do they produce new eggs constantly?

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If aliens on a star system 50 light-years away had the ability to instantly teleport anywhere in the universe, and were to teleport 'here', would they arrive 50 years ago or in our 'present'?

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Does the James Webb telescope have the ability to optically resolve Tabby's Star and see what's going on there?

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Why aren't leaves black?

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Is it known whether childhood obesity affects final adult height?

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Is the entirety of the Neanderthal genome still extant among human modern humans or are all humans with Neanderthal ancestry sharing the same portions of the Neanderthal genome?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
If the Many Worlds interpretation of Quantum Mechanics is true, is there any conceivable way to hop from one timeline to another?	1
Do any animals display instinctual behaviors that are now outmoded thanks to changes in their ecological circumstances? For example, are there any fish that try to swim up rivers that no longer exist in order to spawn?	1
Do any animals show examples of vestigial instinctual behavior?	1
If you had a device that compressed spatial dimensions such that your arms held straight in front of you appeared to instead cross each other, would it be painful or would the physics of stress operate on your body as if everything was normal?	1
In species where polar bodies can fuse with an egg for the purpose of parthenogenesis, are these species born with their lifetime of eggs already in their ovaries like humans (therefore the immature egg is already 'fertilized' waiting in the ovary)? Or do they produce new eggs constantly?	1
If aliens on a star system 50 light-years away had the ability to instantly teleport anywhere in the universe, and were to teleport 'here', would they arrive 50 years ago or in our 'present'?	1
Does the James Webb telescope have the ability to optically resolve Tabby's Star and see what's going on there?	1
Why aren't leaves black?	1
Is it known whether childhood obesity affects final adult height?	1
Is the entirety of the Neanderthal genome still extant among human modern humans or are all humans with Neanderthal ancestry sharing the same portions of the Neanderthal genome?	1