Life is Self-Reproduction with Variations

“In 2011, Trifonov reviewed 123 definitions of life. Each was different, but the same words showed up again and again … he concluded that all the definitions agreed on one thing: life is self‐reproduction with variations.”
– Science writer Carl Zimmer, on geneticist Edward Trifonov’s search for a holistic definition of life, in an excerpt from his new book Life’s Edge: The Search for What It Means to Be Alive
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