Nobel Prize-winning physicist Charles Townes was single-minded about a lot of things, colleagues say. And also a very nice guy. Julian Wasser/The LIFE Images Collection/Getty hide caption

itoggle caption Julian Wasser/The LIFE Images Collection/Getty

An employee of the drug company Apotex, examines some Ciprofloxacin at the plant in Canada. Cipro is commonly given to travelers for diarrhea. More than 20 million Cipro doses are prescribed each year in the U.S. Getty Images hide caption

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A scorpion fly perches on a leaf at the research farm where Lindgren studied the decomposition of human remains. Scorpion flies are among the first insects to visit a corpse. Courtesy of Natalie Lindgren hide caption

itoggle caption Courtesy of Natalie Lindgren

An example of a human precision grip — grasping a first metacarpal from the thumb of a specimen of Australopithecus africanus that's thought to be 2 to 3 million years old. T.L. Kivell & M. Skinner hide caption

itoggle caption T.L. Kivell & M. Skinner

Scientists reprogrammed the common bacterium E. coli so it requires a synthetic amino acid to live. BSIP/UIG via Getty Images hide caption

itoggle caption BSIP/UIG via Getty Images

Unless there's a serious pileup, ants in traffic tend to bypass a collision and just keep going. A physicist has found a way to model this behavior with a mathematical equation. iStockphoto hide caption

itoggle caption iStockphoto

Biologist Rob Knight, co-founder of the American Gut Project, recently moved the project to the University of California, San Diego's School of Medicine. Casey A. Cass/University of Colorado hide caption

itoggle caption Casey A. Cass/University of Colorado

Bar-headed geese tend to follow the sharp ups and downs of the Himalayas as they migrate, research finds. John Downer/Nature Picture Library/Corbis hide caption

itoggle caption John Downer/Nature Picture Library/Corbis

U.S. funding for medical research by source, 1994-2012. (Data were adjusted to 2012 dollars using the Biomedical Research and Development Price Index.) American Medical Association hide caption

itoggle caption American Medical Association