This is a very broad question as there are a great many different species of tree frog. In most of the natural world, living things that change color do so for one of two reasons: breeding or defense. In the case of tree frogs the primary reason is most likely defense - by changing color they can either blend into the environment or repel predators.
because the fatty acid in there body because the fatty acid in there body
All frogs are usually green. It is because of pollution that htey are turning brown. Frogs breath through their skin so they breath in the pollution which turns them brown.
no they are bright colors
Tree frogs are green and red. i like frogs. :)
no. they are not venomous. The bright colors they have are used as camouflage.
You cannot turn green into blue, for both of the colors green and blue are primary colors.
It depends on the type(s) of frog(s) you are talking about. Most frogs are green although some are other colors.
The color of the frogs dorsal side is not consistent. This is because many different frogs are many different colors.
Their colors show emotions. If they are offended, they turn bright red. If they are annoyed, they turn black and grey. When they are green, they are calm.
Their colors show emotions. If they are offended, they turn bright red. If they are annoyed, they turn black and grey. When they are green, they are calm.
blue
any colors
An anole can turn green, gray, black, and brown.
Blue, gold, green, yellow, red, lots of multi colors and combinations