DAN SUZIO / SCIENCE PHOTO LIBRARY DAN SUZIO / SCIENCE PHOTO LIBRARY
Young Mountain Yellow-legged Frog (Rana muscosa) with partial tail visible, Yosemite National Park, California. Once common in the high meadows of the Sierra Nevada, this frog is sliding rapidly toward extinction, having disappeared from as much as 90% of its former range in recent years.
Model release not required. Property release not required.