These rather ghostly little amphibians are Gray Treefrogs (Hyla versicolor)

The Gray Treefrog is a thoroughly awesome species of small arboreal frog native to much of the eastern United States and southeastern Canada. Although both of these photos show the frogs looking pretty grey, as the scientific name implies, Gray treefrogs are variable in colour owing to their ability to camouflage themselves from gray to green, depending on the substrate they are sitting on.

Any animal capable of changing its colour is awesome in our book.

Photos by Mihnea Stanciu and ahockenberry