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Wikipedia picture of the day: September 11, 2015: https://en.wikipedia.org/wiki/File:Coral_Outcrop_Flynn_Reef.jpg

One of the neat things about nature is that it's had a long time to figure things out. Especially under water. Here, nature has figured out how to reduce all the "nutrients" to very low values, and also how to feed every aquatic animal (as well as consume half the world's CO2, and produce half...