/u/verificationist's posts in /r/askscience
Bees are very useful for the environment because they pollinate flowers: Is there any analogous 'good and important' thing that humans do?
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Is there a current agreement within the scientific community on the best estimate or range of estimates for how many alien civilizations there might be in the universe? If not, are there any up-to-date proposals in the scientific literature that are being currently considered as plausible proposals?
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