Augustine Goba (right) heads the laboratory at Kenema Government Hospital in Sierra Leone. He and colleagues analyzed the viral genetics in blood samples from 78 Ebola patients early in the epidemic. Stephen Gire/AP hide caption

itoggle caption Stephen Gire/AP

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

itoggle caption Getty Images

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