A new species of ground beetle found in Antarctica (left) is named Antarctotrechus balli. The three other beetles are close modern relatives of the ancient species. The line drawings show similarities between the beetles. Courtesy of Allan Ashworth/North Dakota State University hide caption
Despite assumptions that peanut, egg and other allergies are becoming more common in the U.S., experts say they just don't know. One challenge: Symptoms can be misinterpreted and diagnosis isn't easy. Roy Scott/Getty Images hide caption
Sunset colors cut through the smoky haze in the Brazilian Amazon in 2015. Kainaz Amaria/NPR hide caption
In a cluster of glowing human stem cells, one cell divides. The cell membrane is shown in purple, while DNA in the dividing nucleus is blue. The white fibers linking the nucleus are spindles, which aid in cell division. Allen Institute for Cell Science hide caption
Rep. Diana DeGette, D-Colo., and Rep. Fred Upton (right), R-Mich., who have spearheaded the 21st Century Cures Act, speak after a 2015 House of Representatives vote in its favor. Congressional Quarterly/CQ-Roll Call, Inc./Getty Images hide caption
To develop a new variety of kale tailored to American palates, plant researchers are surveying consumer attitudes on the leafy green. Study participants took home the six varieties of kale pictured. The takeaway so far? "Be less like kale." Courtesy of H. Swegarden/Cornell NYSAES hide caption
The huge sun shield of NASA's James Webb Space Telescope must be carefully folded to fit into a space about the size of a school bus before takeoff. Chris Gunn/NASA hide caption
Product safety field staff send damaged products, such as this burnt battery pack from a defective electric scooter, to the government testing lab in Rockville, Md. Raquel Zaldivar/NPR hide caption
Various species of ants engage in some kind of agriculture. Here, a leaf-cutter ant gathers food for its fungus farm. Mark Bowler/Science Source hide caption
