The San Luis Reservoir in central California is the largest "off-channel" reservoir in the U.S. It is currently at less than 30 percent of its normal capacity. Kirk Siegler/NPR hide caption

itoggle caption Kirk Siegler/NPR

Researcher Svante Pääbo, was able to extract a complete genome from this ancient human leg bone. Bence Viola/Max Planck Institute for Evolutionary Anthropology hide caption

itoggle caption Bence Viola/Max Planck Institute for Evolutionary Anthropology

The homeless and others in need enjoy lunch at the Los Angeles Mission on Nov. 23, 2011, in celebration of Thanksgiving. Legislation to ban organizations from serving food to homeless people in public places has been proposed in Los Angeles. Frederic J. Brown/AFP/Getty Images hide caption

itoggle caption Frederic J. Brown/AFP/Getty Images

Justin Nagelberg uses the Sa umbrella in New York City. By replacing the metal skeleton with two canopies, the design is lighter and has more headroom. Courtesy of Justin Nagelberg hide caption

itoggle caption Courtesy of Justin Nagelberg

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

itoggle caption Food and Drug Administration

Candice Nelson fits her daughter Arya Kubesh with a Halloween hat at a store at Galleria Mall in Edina, Minn. Retailers are hoping Halloween will give them a good bounce into the peak spending time of the year. Elizabeth Flores/MCT/Landov hide caption

itoggle caption Elizabeth Flores/MCT/Landov

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

itoggle caption University of Maryland School of Medicine/AP

A puppy waits at an adoption event in Miami last year. The city is now considering a ban on the sale of puppies in retail pet stores. Cities and towns in several states have passed similar bans, aimed at cracking down on substandard, large-scale puppy breeders. Wilfredo Lee/AP hide caption

itoggle caption Wilfredo Lee/AP

Lynn Good has had many mentors throughout her career — but few of them were women. "So I'm generationally on the early part of the ascent of women into leadership roles," the Duke Energy president and CEO says. Pat Sullivan/AP hide caption

itoggle caption Pat Sullivan/AP