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5 pages, Audiobook
First published April 1, 2021
There is reason to believe that, driven by large-scale Ediacaran mountain building, more nutrients became available in the oceans. In the modern sea, cyanobacteria continue to be important members of the plankton where nutrients are scarce, but eukaryotic algae tend to dominate where nutrient levels are higher. The pattern we see today in space suggests what happened during Ediacaran times. More nutrients, more photosynthesis by diversifying algae. More photosynthesis, more food and oxygen, and – more than three billion years after life began – a world capable of supporting large, energetic animals. (p. 127)