One possible result in the Mighty Mini Mammals division of 2015's Mammal March Madness tournament. If the species that's seeded highest always wins its bracket, the fennec fox will leave the division and advance to the final four. Adam Cole/NPR hide caption

itoggle caption Adam Cole/NPR

Farmer Magoichi Shigihara checks on his cucumber farm in Nihonmatsu in Fukushima prefecture, about 31 miles west of the Fukushima nuclear power plant, in May 2011. Testing shows radiation in foods grown and raised in Fukushima is back to pre-accident levels. Yoshikazu Tsuno/AFP/Getty Images hide caption

itoggle caption Yoshikazu Tsuno/AFP/Getty Images

Eating at your desk day after day? Research suggests "staying inside, in the same location, is really detrimental to creative thinking," says management professor Kimberly Elsbach. 145/Tom Grill/Ocean/Corbis hide caption

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With the help of researcher Sabudo Boraru (right), anthropologist Chris Campisano, of Arizona State University, takes samples from the fossil-filled Ledi-Geraru project area in Ethiopia. The jawbone was found nearby. Courtesy of J Ramón Arrowsmith hide caption

itoggle caption Courtesy of J Ramón Arrowsmith

Along with sperm, the in vitro procedure adds fresh mitochondria extracted from less mature cells in the same woman's ovaries. The hope is to revitalize older eggs with these extra "batteries." But the FDA still wants proof that the technique works and is safe. Chris Nickels for NPR hide caption

itoggle caption Chris Nickels for NPR

This 2013 photo shows the LD 350-1 mandible just steps from where it was found in Ethiopia. The jawbone fragment is the oldest known fossil from an evolutionary tree branch that eventually led to modern humans, scientists say. Kaye Reed/AP hide caption

itoggle caption Kaye Reed/AP

A waitress serves shark fin soup in a restaurant in Guangzhou, in southern China's Guangdong province on Aug. 10, 2014. Johannes Eisele/AFP/Getty Images hide caption

itoggle caption Johannes Eisele/AFP/Getty Images

About 1 in 3 patients with dementia who live in nursing homes are being sedated with antipsychotic drugs, the GAO says. Outside nursing homes, about 1 in 7 dementia patients are getting the risky drugs. Wladimir Bulgar/iStockphoto hide caption

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