This handout photograph taken and released by the the Ceja de Selva Institute for Sustainable Development Research shows a Gastrotheca mittaliiti, a new species of frog discovered in the Peruvian Amazon. Scientists have discovered a new species of miniature marsupial frog in the Peruvian Amazon that carries its young in a natural pouch on its back, a research institute reported on April 1, 2026. (Photo by Handout / Selva Institute for Sustainable Development Research / AFP via Getty Images) / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / Selva Institute for Sustainable Development Research" - HANDOUT - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS