University of Maryland's Jaydev Desai shows off a prototype of a robot that he and colleagues are developing to minimize harm to patients during brain surgery. John T. Consoli/University of Maryland hide caption

itoggle caption John T. Consoli/University of Maryland
Goddard Space Flight Center Scientific Visualization Studio/NASA

A Costa Rican banana worker carries a stalk of freshly harvested fruit on a plantation in Costa Rica, where many of the bananas that Americans eat are grown. Kent Gilbert/AP hide caption

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Camel jockeys compete at a festival on the outskirts of Saudi Arabia's capital Riyadh, a focal point for the Middle East respiratory syndrome virus. Fayez Nureldine/AFP/Getty Images hide caption

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Football fans ate fattier meals the day after their teams lost a game, a study found. iStockphoto.com hide caption

itoggle caption iStockphoto.com

Genetically modified to be enriched with beta-carotene, golden rice grains (left) are a deep yellow. At right, white rice grains. Isagani Serrano/International Rice Research Institute hide caption

itoggle caption Isagani Serrano/International Rice Research Institute

A blue whale (and human diver) swimming off the coast of Trincomalee, Sri Lanka, in April 2011. Amos Nachoun/Barcroft Media/Landov hide caption

itoggle caption Amos Nachoun/Barcroft Media/Landov