/u/muchmadness's posts

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If the majority of the Earth's surface is covered in salt water, why and how did we, and so many other species, evolve to require fresh water?

1146 upvotes • r/askscience

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If the majority of the Earth's surface is covered in salt water, why and how did we, and so many other species, evolve to require fresh water?	1146	askscience