Even versions of Zi Xiu Tang Bee Pollen labeled "genuine" and "anti-counterfeit" have been found to contain the drug sibutramine, which was supposed to come off the U.S. market in 2010 for safety reasons. Food and Drug Administration hide caption
This experimental Ebola vaccine, developed by the U.S. government, is just one of several undergoing small-scale, preliminary testing. University of Maryland School of Medicine/AP hide caption
The cruise ship Carnival Magic floats behind a catamaran off Cozumel, Mexico on Oct. 17. The ship skipped a planned stop there Friday, the cruise line says, after Mexican authorities delayed granting permission to dock. Reuters/Landov hide caption
Rocky Juarez of the U.S. gets punched in the face in July 2010 by Jorge Linares of Venezuela during their WBA Fedelatin lightweight title fight in Las Vegas. Some researchers believe the human face evolved to take punches — without, of course, the boxing gloves. Steve Marcus/Reuters/Corbis hide caption
An artist's rendering of the flyby with Mars orbiters taking cover. Note that the image says "spacecraft not to scale." NASA/JPL-Caltech hide caption
Avian influenza, or bird flu, causes an infectious and contagious respiratory disease. In the lab, several scientists have made the H5N1 strain more contagious, a controversial line of research. James Cavallini/ScienceSource hide caption
One rationale for extending Medicaid coverage to more people is to help them get to a doctor or clinic before a minor illness becomes a medical emergency. iStockphoto hide caption
Workers drill for oil in the Bakken shale formation outside Watford City, N.D., an area experiencing an oil boom. Andrew Burton/Getty Images hide caption
Apples were beginning to ripen Aug. 26 on trees at Carter Hill Orchard in Concord, N.H. Jim Cole/AP hide caption
Researchers say there's plenty the beef industry can do to use less land and water and emit fewer greenhouse gas emissions. But producers may need to charge a premium to make those changes. iStockphoto.com hide caption
An Indian groundnut vendor waits for customers. Dibyangshu Sarkar/AFP/Getty Images hide caption
Corn farmer Jerry McCulley sprays the weedkiller glyphosate across his cornfield in Auburn, Ill., in 2010. An increasing number of weeds have now evolved resistance to the chemical. Seth Perlman/AP hide caption
Isabella Beukes, of Santa Rosa, Calif., has been legally blind for more than 40 years. An experimental treatment derived from embryonic stem cells seems to have enabled her now to see not just color but also some shapes. Tim Hussin for NPR hide caption
This photo released by Vandenberg Air Force Base on Monday shows the X-37B Orbital Test Vehicle, the Air Force's unmanned, reusable space plane, after it landed at Vandenberg from a previous orbital mission. Paul Pinner/AP hide caption