Gray tree frog
The adult male frog is 3.1 to 5.1 cm long from nose to rear end, and the adult female frog is 3.3 to 6.0 cm long.  This frog can change color. It does this to make itself harder to see. Scientists call this metachrosis. This frog can be light green, gray-green, brown, or dark brown in color.  It takes the frog about half an hour to change from one color to another. There is a white or olive spot under each eye.  Some of these frogs have a white spot on their backs.  There is orange-yellow color on their legs.  The yellow only shows when the frog jumps.  Scientists call this "flash" color.