Faith Goes Viral: Religious beliefs can shape key behaviors when it comes to dealing with disease, says David Hughes, an evolutionary biologist at Pennsylvania State University. In a presentation in August at the 13th Congress of the European Society for Evolutionary Biology in Germany, Hughes and colleagues reported that some of today’s major religions emerged at the same time as widespread infectious diseases, and they propose that the two helped shape one another.

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After losing both of his legs in a climbing accident, biophysicist Hugh Herr says he became motivated to do something worthwhile with his life. Today he runs the Biomechatronics group at the MIT Media Lab and designs better prosthetic limbs for other amputees: “My biological body will degrade in time due to normal, age-related degeneration. But the artificial part of my body improves in time because I can upgrade.” [complete interview here]](http://24.media.tumblr.com/tumblr_lppyoqPRuE1qd9dz2o1_500.jpg)