YellowstoneNPS: Western Tiger Salamanders (Ambystoma mavortium) in Lamar Valley
YellowstoneNPS: Western Tiger Salamanders (Ambystoma mavortium) coming up for air
YellowstoneNPS: Boreal Chorus Frog
YellowstoneNPS: Tiger salamander, Swan Lake Flat
YellowstoneNPS: Tiger salamander, Swan Lake Flat
YellowstoneNPS: Columbia Spotted Frog (Rana luteiventris)
YellowstoneNPS: Columbia spotted frog profile (Rana luteiventris)
YellowstoneNPS: Columbia spotted frog on a log
YellowstoneNPS: Columbia spotted frog in the water
YellowstoneNPS: Chorus frog calling near the Gibbon River
YellowstoneNPS: National Park Service Greater Yellowstone Network (GRYN) Amphibian and Wetland monitoring program: recently hatched Colombia spotted frog tadpole
YellowstoneNPS: National Park Service Greater Yellowstone Network (GRYN) Amphibian and Wetland monitoring program: recently hatched Colombia spotted frog tadpole (2)
YellowstoneNPS: National Park Service Greater Yellowstone Network (GRYN) Amphibian and Wetland monitoring program: recently hatched Colombia spotted frog tadpoles
YellowstoneNPS: National Park Service Greater Yellowstone Network (GRYN) Amphibian and Wetland monitoring program: lead biological technician, Jana, holds a mature Columbia spotted frog
YellowstoneNPS: National Park Service Greater Yellowstone Network (GRYN) Amphibian and Wetland monitoring program: mature Columbia spotted frog in the net
YellowstoneNPS: Columbia spotted frog floating in the water
YellowstoneNPS: Columbia spotted frog hides in vegetation in the water
YellowstoneNPS: Columbia spotted frog rests on the edge of a pond
YellowstoneNPS: Tiger salamander on snow
YellowstoneNPS: Boreal chorus frog