Laser scan of a root. Plant in blue; symbiotic mycorrhizal fungi in red. Mycorrhizal fungi helped the ancestors of plants to move onto land. By the time the first roots evolved, the mycorrhizal association was already some 50 million years old. The word ‘mycorrhiza’ has it right. Roots (rhiza) followed fungi (mykes) into being.
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Video © Merlin Sheldrake