Originally shared by Charles Younger
“Harvard geobiologist Andrew Knoll, who was not involved in the study, wrote that this discovery ‘will change the conversation’ about the emergence of complex life on Earth. Fundamentally, Brocks and his colleagues’ work shows that environmental changes are key to the evolution of life. Without an oxygenated ocean, there would be no animals on this world.
“That’s why scientists are deeply concerned about the de-oxygenation of the seas today as a result of climate change and nutrient runoff from land.”
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