In the geographical context, there are three continents of the world out of the seven total continents where frogs could be found on trees. These are namely Europe, North America and South America. On some instances, such type of frogs could also be found in warmer parts of Asia. What keeps these frogs stuck to the branches and surfaces of trees are small, sticky discs, which are on the top of their webbed fingers and toes. These substances enable the frogs to cling to the tree branches conveniently.

There is such a frog found in Europe, which is called Hyla Arborea. As far as size and shape of the frog go, it is less than two inches long and is bright green in colour. Like chameleons, tree frogs can change colour too from bright green to yellow, brown or black. There are other types of tree frogs too like the spring peeper and the Hyla versicolour. The latter also has the ability to change its colour to grey, green or brown. It has a loud, croaking kind of a voice.