Sir David Attenborough at the Beijing Museum of Natural History with fossil of Juramaia, as featured in the Smithsonian Channel series Rise of Animals: Triumph of the Vertebrates. Courtesy Smithsonian Channel hide caption

itoggle caption Courtesy Smithsonian Channel

State Sens. Warren Limmer (left) and Bill Ingebrigtsen talk in the Senate chamber. Limmer said he has been scolded for looking at his colleagues during debate before, and had "to beg forgiveness to the Senate president." David J. Oakes/Minnesota State Senate hide caption

itoggle caption David J. Oakes/Minnesota State Senate

Rabia Salihu Sai'id, Mojisola Usikalu, Nashwa Eassa, Mojisola Oluwayemisi and Dang Thi Oanh won the Elsevier Foundation Awards for Early Career Women Scientists in the Developing World Alison Bert/Elsevier Connect hide caption

itoggle caption Alison Bert/Elsevier Connect

Genetically modified rice plants are shown in a lab in 2006. A new report from Pew Research shows a wide gap between perceptions of safety of GM foods between scientists and the general public. Rich Pedroncelli/AP hide caption

itoggle caption Rich Pedroncelli/AP

Some physicists are pushing back against ideas like string theory and the multiverse. Here, we see a computer-generated image of a black hole, which might, ultimately, be explained by ideas like string theory. Alain Riazuelo/IAP/UPMC/CNRS hide caption

itoggle caption Alain Riazuelo/IAP/UPMC/CNRS

Jennifer Doudna and her colleagues found an enzyme in bacteria that makes editing DNA in animal cells much easier. Cailey Cotner/UC Berkeley hide caption

itoggle caption Cailey Cotner/UC Berkeley