image: Juvenile mountain gorilla climbing a tree in the Democratic Republic of the Congo. This material relates to a paper that appeared in the Jan. 18, 2017, issue of Science Advances, published by AAAS. The paper, by A. Estrada at National Autonomous University of Mexico in Mexico City, Mexico, and colleagues was titled, 'Impending extinction crisis of the world's primates: Why primates matter.' view more
Credit: [Credit: © Conservation International/photo by Russell A. Mittermeier]