Once abundant in the Southern Rocky Mountains, the boreal toad is a rare sight today.
(image 1 of 6)U.S. Forest Service biologist Kelly Larkin hikes into the Colorado high country, in search of boreal toads.
(image 2 of 6)Brock McCormick and Doreen Sumerlin swab a boreal toad for evidence of chytridiomycosis.
(image 4 of 6)With a grip around the female’s chest, a male boreal toad fertilizes the thousands of eggs she produces.
(image 5 of 6)A toad jumps through tall wetlands vegetation; female toads have been observed to travel more than a mile from their breeding ponds
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