Nymph Lake, Rocky Mountain NP, Colorado, USA
Photograph by Yen-Wen Lu
Cougar (Puma concolor), United States
Photograph by Gerald and Buff Corsi, California Academy of Sciences & CalPhotos
Horseshoe Park, Colorado, USA
Photograph by Yen-Wen Lu
World Wildlife Fund and National Geographic would like to thank all of the individuals, organizations, companies, and government agencies who have contributed photos to this site. Photos used with permission of the copyright holder. All rights reserved.
