/r/askscience

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Are there any examples of vague speciation? For example species B can reproduce with A and C but A and C cannot reproduce.

522 upvotes • physchy

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Are there alternative notations for hyper-large numbers such as TREE(3)?

522 upvotes • MedinaPharma

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If I dropped a penny in the ocean over the Mariana Trench, how long would it take for it to hit the bottom?

521 upvotes • beckaly

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Is there any real natural connection between all of the animals that we call "dinosaurs"? Or are they all just called that because they lived within the same time period?

521 upvotes • krevency

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Does drinking a shot of hard liquor kill the bacteria in a person's mouth?

521 upvotes • natedog102

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What triggers the physical changes in silverback gorillas, and are there any similar changes noted in other dominant male primates (including in humans?)

521 upvotes • DweadPiwateWoberts

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If it were possible to put a pipe straight through the earth, from north to south pole and you dropped a ball down the pipe what would happen?

521 upvotes • BeerPizzaTacosWings

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Does thinking harder burn more calories?

521 upvotes • mirdashewrote

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Why are we pursuing a "cure" for aging? Can our economy and planet handle the added burden of less people dying?

520 upvotes • zoofunk

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This may be a dumb question, but how does a Lion know he can kill me, but a duck doesn't?

520 upvotes • sbfbob

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
Are there any examples of vague speciation? For example species B can reproduce with A and C but A and C cannot reproduce.	522	physchy
Are there alternative notations for hyper-large numbers such as TREE(3)?	522	MedinaPharma
If I dropped a penny in the ocean over the Mariana Trench, how long would it take for it to hit the bottom?	521	beckaly
Is there any real natural connection between all of the animals that we call "dinosaurs"? Or are they all just called that because they lived within the same time period?	521	krevency
Does drinking a shot of hard liquor kill the bacteria in a person's mouth?	521	natedog102
What triggers the physical changes in silverback gorillas, and are there any similar changes noted in other dominant male primates (including in humans?)	521	DweadPiwateWoberts
If it were possible to put a pipe straight through the earth, from north to south pole and you dropped a ball down the pipe what would happen?	521	BeerPizzaTacosWings
Does thinking harder burn more calories?	521	mirdashewrote
Why are we pursuing a "cure" for aging? Can our economy and planet handle the added burden of less people dying?	520	zoofunk
This may be a dumb question, but how does a Lion know he can kill me, but a duck doesn't?	520	sbfbob