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How Could Life Evolve From Cyanide?
...evolutionary history as a recorded “tape of life” that might turn out differently if it were replayed again and again. In this episode, Steven Strogatz speaks with two researchers inspecting...
Life’s First Peptides May Have Grown on RNA Strands
...coevolution of two of life’s key players as a single mixed, “chimeric” molecule may have been the very start of protein production, and a step toward a primitive version of...
Will the James Webb Space Telescope Reveal Another Earth?
...for particle physics? Do you have a standard model for galaxy evolution or star formation or all that? Rieke (13:36): Well, there’s certainly a kind of commonly accepted framework right...
Puzzling Quantum Scenario Appears Not to Conserve Energy
...before and after the system’s evolution should match. Popescu says the thought experiment, while perplexing, is compatible with this version of conservation of energy. Because the superoscillatory region is such...
Why ‘De-Extinction’ Is Impossible (But Could Work Anyway)
...it’s possible,” said Beth Shapiro, a professor of ecology and evolutionary biology at the University of California, Santa Cruz. Ben Novak, a lead scientist for Revive & Restore, one of...
In Test Tubes, RNA Molecules Evolve Into a Tiny Ecosystem
...world. These studies were the world’s first experimental demonstration of Darwinian evolution at the molecular level — “evolution by natural selection, survival of the fittest,” said Eugene Koonin, a National...
Ancient Genes for Symbiosis Hint at Mitochondria’s Origins
...mitochondria, setting the stage for the revolution to come. Lionel Guy, an evolutionary microbiologist at Uppsala University in Sweden and an author of the new paper, began sequencing bacteria of...
In Sexy Worms, Inheritance Beyond Genes Can Help Evolution
...it may point to a mechanism that works in tandem with traditional natural selection in shaping the evolution of some organisms. As the new paper in Developmental Cell shows, the...
Mitochondria Double as Tiny Lenses in the Eye
...striking parallel between mammalian eyes and the compound eyes of insects and other arthropods, suggest that our own eyes have hidden levels of optical complexity, and that evolution has found...