Rio Utcabamba near Bagua, Amazonas, Peru ID: 0000 3333 0531 1385 [detail] © Museum of Vertebrate Zoology, University of California, Berkeley

Rio Utcabamba near Bagua, Amazonas, Peru ID: 0000 3333 1721 2553 [detail] © Museum of Vertebrate Zoology, University of California, Berkeley

Rio Utcabamba near Bagua, Amazonas, Peru ID: 0000 3333 2431 3212 [detail] © Museum of Vertebrate Zoology, University of California, Berkeley

Using these photos: A variety of organizations and individuals have contributed photographs to CalPhotos. Please follow the usage guidelines provided with each image. Use and copyright information, as well as other details about the photo such as the date and the location, are available by clicking on the [detail] link under the thumbnail. See also: Using the Photos in CalPhotos.