All of today's DNA, strung through all the cells of the earth, is simply an extension and elaboration of [the] first molecule.
Lewis Thomas, The Medusa and the Snail: More Notes of a Biology Watcher
biology, common-ancestor, dna, evolution, first-cell, first-molecule, origin-of-dna, origin-of-life, origin-of-the-first-cell, origin-of-the-first-molecule, science, universal-common-ancestor