The problem with categorical thinking in biology is that evolution does not work like that.

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Wallace, who lived in Neath on a couple of occasions, was a leading thinker on evolution in the 19th century, although his work was overshadowed by Darwin.

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Put plainly, market evolution that put a low value on factory work in the eyes of investors, along with the desire of factory workers for something better, led to the disappearance of factories from the U.S. landscape.

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It's difficult for results-oriented American sports fans to grasp, but for many soccer fans, the object of the game is never simply to win but to win beautifully and to play a role in the evolution of the game as an organic work of art.

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The evolution in the market for Joan Mitchell's work illustrates how collectors have recently "discovered" an artist long in the shadows of her male counterparts.

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The work started as a student project at Cambridge, and is published in Trends in Ecology and Evolution.

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Steven joined Microsoft in 1989 as a software development engineer and has contributed to the company in many ways from his work as a technical advisor to Bill Gates, to leading the evolution of theMicrosoft Office business, to his direction and successful leadership of Windows and Windows Live as well as Surface.

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An evolution in the marketplace of talent has quietly but irrevocably changed how people look for work and how companies find workers.

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