Observations: Controversial caterpillar-evolution study formally rebutted
A contentious paper suggesting that butterflies and caterpillars descended from different ancestors has been rebutted in the same journal in which the original, controversial research appeared. In August, retired biologist Donald Williamson of the University of Liverpool in England posited in an online Proceedings of the National Academy of Sciences USA (PNAS) paper that the metamorphosis between
Observations: Evolution details revealed through 21-year E. coli experiment
Oct 18, 2009 01:01 PM in Evolution | 35 comments Evolution details revealed through 21-year E. coli experiment By Katherine Harmon In 1988 an associate professor started growing cultures of Escherichia coli. Twenty-one years and 40,000 generations of bacteria later, Richard Lenski, who is now a professor of microbial ecology at Michigan State University, reveals new details about the differenc
Digital Forensics: How Experts Uncover Doctored Images
Modern software has made manipulation of photographs easier to carry out and harder to uncover than ever before, but the technology also enables new methods of detecting doctored images History is riddled with the remnants of photographic tampering. Stalin, Mao, Hitler, Mussolini, Castro and Brezhnev each had photographs manipulated—from creating more heroic-looking poses to erasing enemies or bot
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