The Unseen Gray Tree Frog

“I accidentally put my hand on this gray tree frog while hiking over lichen-covered granite boulders at Borestone Mountain Audubon Sanctuary in Guilford, Maine," writes Jill Osgood in sharing her photo with us. "The cold slimy frog under my hand made me scream, but the frog seemed unfazed. Truly amazing camouflage!”

Photo of gray tree frog by Jill Osgood

In addition to having those lichen-like blotches to hide them, Eastern gray tree frogs can change color to match their surroundings; their scientific name is, appropriately enough, Hyla versicolor. Thanks, Jill. Anyone else encountered a tree frog or other animal so well camouflaged that you've nearly missed it?