Evolution's gears don't reverse easily

Ever since Charles Darwin proposed his theory of evolution in 1859, scientists have wondered whether evolutionary adaptations can be reversed.Answering that question has proved difficult, partly due to conflicting evidence. In 2003, scientists showed that some species of insects have gained, lost and regained wings over millions of years. But a few years later, a different team found that a protein that helps control cells' stress responses could not evolve back to its original form.Jeff Gore, assistant professor of physics at MIT, says the critical question to ask is not whether evolution is reversible, but under what circumstances it could be. "It's known that evolution can be irreversible. And we know that it's possible to reverse evolution in some cases. So what you really want to know is: What fraction of the time is evolution reversible?" he says.By combining a computational model with experiments on the evolution of drug resistance in bacteria, Gore and his students have, for the first time, calculated

Evolution's gears don't reverse easily

Thu 12 May 11 from Discover Magazine

Evolution's gears don't reverse easily, Thu 12 May 11 from Discover Magazine

Study shows evolutionary adaptations can be reversed, but rarely

Ever since Charles Darwin proposed his theory of evolution in 1859, scientists have wondered whether evolutionary adaptations can be reversed.

Wed 11 May 11 from Phys.org

Study shows evolutionary adaptations can be reversed, but rarely, Thu 12 May 11 from Labspaces.net

Study Shows Evolutionary Adaptations Can Be Reversed, But Rarely, Thu 12 May 11 from RedOrbit

Study shows evolutionary adaptations can be reversed, but rarely, Wed 11 May 11 from e! Science News

Study shows evolutionary adaptations can be reversed, but rarely, Wed 11 May 11 from Eurekalert

Evolutionary Adaptations Can Be Reversed

By combining a computational model with experiments on the evolution of drug resistance in bacteria, researchers have calculated the likelihood of a particular evolutionary adaptation reversing ...

Thu 12 May 11 from Laboratory Equipment

Evolution, reversed, Wed 11 May 11 from R&D Mag

Evolutionary adaptations can be reversed, but rarely

Physicists' study of evolution in bacteria shows that adaptations can be undone, but rarely. Ever since Charles Darwin proposed his theory of evolution in 1859, scientists have wondered whether ...

Wed 11 May 11 from ScienceDaily

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