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

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Infanticide is a behavior we might expect to be weeded out by natural selection, but dozens of mammals practice it. Does it provide a survival advantage for overstressed mothers who can go on to breed again? Why is it so prevalent?

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Is the level of soil loss and erosion on North American and European farmland significant enough to threaten our future food supply?

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The fusion power experiment at Lawrence Livermore National Laboratory in California used 2 megajoules of energy to produce 3 megajoules, or a factor of 1.5 in energy gain. What sort of factor of energy gain would be reasonable for a commercial power plant to be viable?

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Where can I find information on average US cholesterol and blood pressure levels by age, perhaps sorted by different demographics?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Infanticide is a behavior we might expect to be weeded out by natural selection, but dozens of mammals practice it. Does it provide a survival advantage for overstressed mothers who can go on to breed again? Why is it so prevalent?	1
Is the level of soil loss and erosion on North American and European farmland significant enough to threaten our future food supply?	1
The fusion power experiment at Lawrence Livermore National Laboratory in California used 2 megajoules of energy to produce 3 megajoules, or a factor of 1.5 in energy gain. What sort of factor of energy gain would be reasonable for a commercial power plant to be viable?	1
Where can I find information on average US cholesterol and blood pressure levels by age, perhaps sorted by different demographics?	0